Immeasurable Tape
Basically just measuring tape that somehow extends forever. For some reason, the tape container is normally sized, despite containing infinite tape. Would be useful to measure distances.
And would be useful for me to build myself a tape only made empire state building from bottom to top.
But still the idea although great, does have some weaknesses, and the idea is kinda terrible.
The idea is not great. It's the worst idea in existence.
What do you think?