I met with my pastor, who was mine and my FH's vice principal back in middle school, we don't currently go to church, he is more than happy to marry us, and for free, but normally asks for a "love offering" but also said he's not worried about one from us "im just so thrilled yall remembered me and came to ask me" I want to give him something, but we are doing the whole wedding on a tiny budget, which he knows, and I'm unsure as to how much would be an insult and how much would be acceptable.... Any advice?