I uploaded few pictures of my customized Eurorack to the photo section:

1 – I never liked those dull gray Doepfer and the cheesy rubber ASys
knobs. When I got my Zeroscillator, I liked Cynthia's knobs much
better so I replaced all of them (200 knobs!).

2 – The MCV24 LCD display was hard to read and its view field was way
too narrow. I replaced it with a Noritake VFD. Plus it looks very cool!

3 – My Zeroscillator pitch knob had no visual position reference. I
replaced the knob with a 10-turn counting type. It also looks cooler
and higher-tech :-)