EC or Slaanesh bits

I got a box of Terminators for my EC, and I'd like to try and Slaanesh-ify or EC-ify them instead of going with just the regular Chaos bits in the box. I tried to check if there are any such bits that I could either get 3D printed, or just buy them from someone who has a printer, but I can't seem to find anything that fits properly. Is anyone aware of any such possible bits that I can buy or get printed?