[joshvm]

There's also the Vestaboard (about 3k) if money is no object. Compared to the price of building one from scratch it's probably not a bad deal. 132 characters including colours. It is essentially an art piece, but it does look amazing.

https://europe.vestaboard.com/products/vestaboard

[bryanrasmussen]

Vestaboard discussion on HN here https://news.ycombinator.com/item?id=29327147 the top comment is a description of this split flap art project https://vimeo.com/224913612