Adding to the set of Mario block cartridge cases started by Kickass3DPrints and Ethanfel, this is the Note Block. Variants are included for Switch, 3DS, and DS cartridges.

This is remixed from Kickass3DPrints's "Question Block Switch Cartridge Case" (https://www.thingiverse.com/thing:2517867) which is in turn derived from designs by jarolinares (https://www.thingiverse.com/thing:2265712) and 3D-IN (https://www.thingiverse.com/thing:1819204).

Also check out Ethanfel's matching Brick Block (https://www.thingiverse.com/thing:2647064), POW Block (https://www.thingiverse.com/thing:2642892) and Switch Block (https://www.thingiverse.com/thing:2627168).

Video of the remix, print, and build process: https://youtu.be/ETrenKzUeFY

Post-Printing