Old computer peripherals. They're everywhere. Most simply consist of a box, a few wires & a few connectors. Instead of trashing that old box of peripherals in the attic, consider turning them into Retro Modules.
This Instructable details how to create a NeoPixel "flower dome" Retro Module, similar to the one seen in Beauty and the Beast. If you prefer, the "flower" pictured can be decorated to more closely resemble a real flower.
Most of the parts used in this build are -- or were sourced from -- old devices. These older devices can usually withstand tough conditions in stride. They feature larger, easily hack-able components. The old parts are likely on their way to the landfill. You can rescue them.
The modern parts can be attained for about $20. Ask your local hackerspace if they have any spares.
What you'll need: