Well, he grinds them down. Otherwise nothing short of one of those British bearskin hats, or something Carmen Miranda would wear would suffice. I don't think they'd fit in a shtreimel unless it was hilariously oversized.

What would be cool would be if he periodically chopped them off and made shofars out of them. Of course they surely wouldn't be kosher, but it would certainly be neat.

Instead we'll have to wait for rams (or at least horned animals that aren't cows) that are genetically engineered to be intelligent, have the right sort of lips, and who are Jewish. Someday, man, someday.