Costumes for bunnies?

I would like to dress my Rex rabbit up for Christmas. I understand that he may not like it - and I won’t force him to if he didn’t want to. I’ve been looking for rabbit costumes but most of them (which are for small dogs) have holes for the legs. Will putting Apollo’s legs in these holes hurt him or should I get him a harness sort of one?
Thank you in advance.

Harness are safer and bigger chance for the bunny to not feel restricted.

But dressing a bunny up should only be short amount of minutes for example taking a picture and also how your bunny react will determine if they can have it on or not. Myself often dress up Odin while the rest of the bunnies get to wear a santa hat which they can shake off if they want to.

If you dress your bunny, make sure to have treats to reward them and keep them happy. Myself only dress up for pictures.