I've always loved these - this company makes one that looks great, but isn't open source (there is an API that has yet to be released): https://www.vestaboard.c

I've always loved these - this company makes one that looks great, but isn't open source (there is an API that has yet to be released): https://www.vestaboard.com https://www.vestaboard.com It's also quite expensive, but has a clever design where the individual split-flap modules can be replaced. There are also custom ones you can have made (probably even more expensive), but they're mostly targeting enterprise: https://www.oatfoundry.com/split-flap/ https://www.oatfoundry.com/split-flap/ It'd be neat to have one you could hook up to some market API to make a little stock ticker. Very cool to see work an open source design.