Tails: 

Nub/Extra Small(<30cm): 40€+

Small (30-60cm): 65€+

Big (60-100cm): 110€+

Floor dragger: 200€+

Motion tail: 300€+

Other add-ons: 

Extra fur color: +30€

I'm up for learning and experimenting, if you have an idea ask me and I'd be willing to try whatever it is you need! ("Learning" elements will be cheaper ;))