How about a Geiger counter synth module? Nuclear Decay was designed by TimMJN and this is my version. It works, but if you want more than occasional blips from it, you may need something extra...
TimMJN's git repository for his schematic: https://github.com/TimMJN/Geiger-Counter-Module (Thanks, Tim!)Git repository for the Geiger counter: https://github.com/2969773606/GeigerCounter-V1.1Git repository for my schematic, panel, and STL file: https://gitlab.com/rsholmes/nucleardecayMy blog posts:https://www.richholmes.xyz/analogoutput/2024-01-11_nuclear-decay/https://www.richholmes.xyz/analogoutput/2024-01-20_nuclear-decay-meets-autunite/https://www.richholmes.xyz/analogoutput/2024-03-04_three-new-ones/Synth website https://www.richholmes.xyz/topics/synth/Video about the prototyping board: https://www.youtube.com/watch?v=KgNe23wLIq0Nervous Squirrel's Ore-some Volts: https://www.nervoussquirrel.com/ore-some_volts.htmlRadioactive consumer products: https://orau.org/health-physics-museum/collection/consumer/index.htmlGeiger Check: https://geigercheck.com/Music: Ringtone by Rich Holmes