I have come into possesion of a set of speakers that were mounted on the ceiling of a small church. They're not half bad sounding, and I will be using them in a 5.1 setup. The problem is they come complete with MASSIVE wall mounts bolted into their bottom sides. Naturally, I will be taking the mounts and their respective bolts out in order to set them on speaker stands. I thought about just removing the mounts and popping the bolts back in, but I think that will make it difficult to place them on the stands. If I don't take that route, what should I do to plug the holes. I can think of a few things to use (dowell and glue, rubber stopper of some sort, etc.), but what will be the best choice? Will it even matter? Thanks in advance.