For me it is mainly bats of my favorite player, Wade Boggs. I have everything from little kids tee ball bats to a 1/1 All Star game bat. I blame this collection on a fellow member. He kept emailing me pics of all his amazing bats and got me hooked.
Here is a pic showing the top half of the display I made. I now have enough bats I need to build another one. One for gamers and one for store models.
My awesome wife lets me keep it in the living room and it brings me more joy now than all but a few cards.
We need more pics in this thread so post some
