Have you ever tried friction welding using your dremel and a piece of filament? It's a quick (and pretty fun) way to spot weld seams and is super helpful to hold parts together while epoxy sets.
SOS money stash. Roll a bill up and insert from the bottom then crush the container when needed.
Printed resin pen that stays shut using two small metal pins that act against the helix of the body. Fits two ink refills to help with dimensioning sketches
Is this print half full or half empty?
Desk / wall planter with water dish base
Long weekend recovery mode.