At most vets, you pay for a vet tech visit AND for the nail trim. At my vet, each trim costs 6 dollars, and the vet tech visit is an additional $12. With my two buns, they only charge for one visit, but each nail trim is separate, so it comes out to $24 for two bunnies. When you have your bun there for another purpose like a check-up, definitely ask them to trim them. At that point, you should only be paying for the actual service, since you are already paying for your visit.
For a long time, I was taking the buns to the vet for trims every month but when my husband was laid off, I could no longer justify the expense, so I had to “buck up” and trim them myself. I’ve been doing well at it. I hold them upright against my side with one arm under their chest and trim all the nails I can with my right hand. For the couple I can’t see/reach with my right, I transfer the bun to my other arm and I trim them (CAREFULLY!!!) with my left, non-dominant, hand. I tried trancing and towels and they don’t work for my buns. I was spending more time trying to bundle the bunny than actually trimming.