Motivate me to prototype something awesome

[Loki Clock]

Paint? Helpful for those who mix their own paints, but don't want to buy all them make-yers-own tubes. Would need some specialization of the design.

[buttplug]

I don't know maybe it could have uses for astronauts? I'm sure they have some kind of liquid/food/glue shit they want to squirt out of a tube, and it would probably be better if it was refillable.