There are a couple I'm familiar with.
/r/tipofmytongue is a subreddit for basically anything you can't quite put your finger on, while /r/yester is a subreddit for finding recent reddit content.
Your question is probably just as valid here, but those are just a little bit more specific.
As for your question, are you thinking of Frogatto? It's a game that you can edit the source code to change things on the fly. I believe Overgrowth also has the same capabilities.
My best guess is that you make your own. You can buy Sound module grab a pair of christmas socks and find a way to make them yourself DIY.
It's not exact, but it's some search terms to use.
Silvery 1" Inside Diameter D-ring Lobster Clasp Claw Eye Lobster Snap Clasp Hook (Pack Of 20) https://www.amazon.com/dp/B00C3TGUAU/ref=cm_sw_r_other_awd_oRymwbCE61ACV
Gaming keyboard offer that functionality. I have a Microsoft sidewinder X4 that has function keys and multimedia keys