Device Details


The switch adapted Boppin’ Beaver toy sings and dances and can be controlled with accessible switches that have a 3.5 mm jack. The beaver is a Fisher Price toy that teaches ABCs, 123, opposites, and simple games.


You can use the Boppin’ Beaver by plugging in a switch. Then, press the switch to activate the beaver.

Build Instructions

You can build the Boppin’ Beaver by following the video tutorial by “Santa” Gerry Galland. There is also a written assembly guide linked above on the MMC Github page. You can also follow the “How to prep your 3.5mm headphone jack” documentation if needed.


  • Drill with ¼” drill bit
  • Wire Strippers
  • Flush Cutters
  • Phillips screwdriver
  • Soldering Iron
  • Solder
  • Ruler


  • Boppin’ Beaver Linkimal
  • Mono jack
  • Wire


Documentation created by Neil Squire / Makers Making Change – based on instructional video by “Santa” Jerry Galland.

Instructional Video by “Santa” Jerry Galland.