I swear I saw some red, white and blue 1/4" input sockets on aliexpress and eBay a couple of weeks ago, when not looking for them. Now I'm looking for them I can't find them....did I dream it all?
https://www.ebay.com/itm/321906650877
They exist :icon_lol:
Don't know where you are located but in Europe these are sold by Banzaimusic and Musikding, so maybe a quicker delivery than from eBay.