3D-Printed (Baby) Drum Pedal

I really enjoy making things with my 3D printer, and normally my projects involve electronics too.
This was a bit different, but it's a good example of something you can design/print over a weekend.

My little nephew loves playing his toy drums, but the set that he used to have, was missing the bass pedal.
It wasn't worth buying a replacement since he'd outgrow this drum kit soon, instead I'd try to make him one...