Character matrices are also a fun challenge for FPGA video processing; the Pixel Wrangler can do this too.
Vector displays are maybe not the best match for the Pixel Wrangler, although it can be made to work...
Maybe you have an old Mac that you want to use as an HDMI monitor? The Pixel Wrangler can do that!
If you want to turn HDMI video into art, then you might be interested in my Pixel Wrangler project: https://github.com/osresearch/pixel-wrangler
the transition from vertical and horizontal blanking intervals is clear, but the TMDS data is just wrong.
Acquired a better hdmi adapter and now the 5x PLL on the TMDS clock input into the fpga LVDS looks solid.
3D printed puzzle based on Lee Swallow's "Geomagic Squares". The nine pieces form three 3x3 cubes in three different ways: https://www.thingiverse.com/thing:5846405