Honestly I like a lot of the more colorful pipes. I have even been eyeing up a nice red pipe which over the years that's been a common color for me and pipes. And I didn't include my Vauen which has a blue stain but it's a dark blue. It is like when someone with black or dark brown hair dyes their hair blue or purple and it looks normal until the sunlight hits it and then you can see the colored sheen. Which I think is awesome in both cases. Though now that I think about it I don't like yellow pipes. The silly part is it looks to my eye like plastic.