We'll be showing off two mods with lamps we got at our local IKEA but you don't have to use these lamps. They work fantastically but other lamps you may already own could also work well. Also, check out your local thrift/antique store for funky finds.
Our little creature friend Spoka seems to have been made for Circuit Playground Express. The outside casing is stretchy silicone. The inside is a hard plastic self-contained housing with the electronics for the lamp. If your lamp is plugged in, unplug it first. Then, follow the steps below.
The raised part of the base of the geometrical Sjopenna is a perfect place to attach your Circuit Playground Express.
You'll need some kind of adhesive to attach it as there is nothing to fit it into. Simple double-sided tape wasn't thick enough or sticky enough. Double-sided sponge tape worked very well.
If you want something more permanent or simply feel like getting fancy, consider using Sugru, the awesome mouldable glue!