JN Soundboard - An open-source hotkey soundboard program
Hidden Bar - A ultra-light MacOS utility that helps hide menu bar icons.
CasterSoundboard - A soundboard for hot-keying and playing back sounds. (For podcasting)
TramaTM - Protect your brand. Register your trademark. Free verification. Simple online process. Transparent price. Money back guarantee.
Soundplant - Play sound files with the computer keyboard
Vanilla - Vanilla is a free Mac app that lets you hide icons from your menu bar.