Not everything needs to become a system. A sketch is not a failed painting.
Small builds that were finished the day they were started. They are listed here as sketches so they stop reading as unfinished obligations — which is the failure mode of keeping them in a folder called "misc."
Unrelated to each other, related in shape: a single idea, built, not extended.
Two passes at atmosphere over mechanics. Neither became a game. Both were the point at the time.
An orbital toy, built well before the orbital mechanics got done properly in Cartograph. The interest preceded the rigour.
A route optimiser and a prompt engine. Both solved their afternoon and stopped.
Four sketches outgrew the pile and got pages of their own: Watch Your Grass (a.k.a. Arm a Garden), Moon Compatibility, Bubble Editor and The Monstrosity.
Because a portfolio that pretends every afternoon was a product is lying, and because these were fun — a sufficient reason that does not require a roadmap attached to it. They are not unfinished. They are done.