Self-made
The self-made frother was able to froth, however due to some errors in the sealing process, leaked some of the milk while frothing. As well, due to an issue in the design process, the frothed portion of the milk was not able to be transferred into the glass.
| Part | Quantity | Name | Size/shape | Function | How it interacted | Material |
| A | 2 | Plastic cup | ~8 cm in diameter and length | Held milk and acted as a guard/milk shield | One cup was glued to the cover and another placed to be held down to protect from milk spillage | Polypropylene plastic (hard but flexible) |
| B | 1 | Cover | ~13 cm length and width (square with a hole in the center) | Protected the user from milk leakage | Was glued to one of the plastic cups | Rubber/plastic (flexible) |
| C | 5 | Legos | ~2.5 cm length, rectangular shaped | Frothed milk when container was shaken | Tied with fishing line | Hard plastic |
| D | 5 | Fishing line | ~5 cm in length, with varying lengths | Held Legos to prevent them from being poured out of container | Tied to Legos and other end was glued to inside of the container | Plastic |
| E | 10 | Tacks | ~ 2 cm from base to tip | Created more surface area to froth milk | Was glued to inside bottom of container | Plastic and metal |
Ikea
The Ikea frother worked incredibly well, it was able to more than double the volume of the milk. The frothy milk stayed voluminous even after 5 minutes and only took around 30 seconds to a minute to froth.
| Part | Quantity | Name | Size/Shape | Function | How it interacted | Material |
| A | 1 | Battery cover | 3 cm, rectangular | Covered the batteries and prevented them from falling out | Was connected to contact and outer shell | Plastic |
| B | 1 | Steel contact | 3 cm, rectangular | To connect batteries and continue the circuit | Was connected to battery cover | Steel |
| C | 2 | Outer shell | 10 cm, rectangular with one end tapering off, half of a cuboid, hollow inside | To contain and protect motor and batteries | Two halves would snap together, attached without glue | High density Polyethylene (HDPE) |
| D | 1 | Switch | ~2 cm, rectangular with “teeth” on one side to create traction | To turn off and on the frother | Snap fit to the outershell | Plastic |
| E | 2 | Copper contact | 1 cm | To attach the batteries to the rest of the circuit | Attached to plastic connecter | Copper |
| F | 1 | Connector | 1 cm | To hold the copper contacts | Held copper contacts in place | Plastic |
| G | 1 | Motor cover | 1 cm | To contain internal wiring and components of motor | Snapped into motor casing | plastic |
| H | 1 | Motor topper | 1 cm | To top spine and keep blades in place | Attached to spine | Non-conductive metal and plastic |
| I | 2 | Blade topper | 1 cm | To top metal blades and keep them in place | Slid on top and below blades on spine | Plastic |
| J | 14 | Stator magnets | 1 cm | Turned motor | Slid into spine | Metal (magnetic) |
| K | 3 | Copper wire | ~2 m | Held stator magnets together and spun magnet | Coiled around magnets | Copper |
| L | 1 | Spine | 3 cm | Held magnets and wire together | Slid into center of blades | Steel |
| M | 1 | Motor casing | 2 cm | Protected internal mechanism of motor | Snapped into motor cover | Steel |
| N | 1 | Frother body connector | 1 cm | To connect the frother body to main body | Enveloped spine of motor and frother body | Platic |
| O | 1 | Connector protector | 1 cm | To protect frother body connector | Enveloped connector and slid through frother body | Plastic |
| P | 1 | Frother body | 10 cm | To froth milk | Connected to motor via connector | Non-conductive metal |
| Q | 1 | Spring frother | 6 cm | To froth milk | Connected to spiral end of frother body | Non-conductive metal |
Kuissential Slick Froth
The Kuissential Slick Froth milk frother initially worked as well as the Ikea frother and frothed the milk up by the same volume and in relatively the same amount of time. However, the milk froth deflated a lot faster than the Ikea frother. Over all, it was smother to hold and handle and had better aesthetics. As well, the on off button was easier to use than the Ikea one as it was at the top of the frother rather than the bottom.
| Part | Quantity | Name | Size/Shape | Function | How it interacted | Material |
| A | 1 | Battery cover | 1 cm | To cover battery | Locked onto switch | Plastic |
| B | 1 | Conductor | 1 cm | To connect batteries | Screwed in with screws | Metal |
| C | 2 | Small screws | 0.5 cm | To connect conductor to battery cover | Screwed into holes in conductor and battery cover | Metal |
| D | 2 | Body shells | 7 cm | To protect and contain components | Screwed in with large screws | Plastic |
| E | 2 | Large screws | 1 cm | To keep the body shells connected | Screwed into holes in body shell | Metal |
| F | 1 | Connector | 1 cm | Keeps the frother spine connected to motor | Snapped in place | plastic |
| G | 1 | Motor cover | 2 cm diameter | Covers and protects components of motor | Snaps in place | Plastic |
| H | 1 | Motor | 2 cm diameter, 2 cm length | Spins frother spine | Connected to frother spine | Metal |
| I | 1 | Frother spine | 10 cm | Holds spring to froth milk | Connected to motor | Metal |
| J | 1 | Spring | 5 cm | Froths milk | Connected to frother spine | Metal |