I found a battered old medicine cupboard in our basement from the previous owners. I knew it would be absolutely perfect for my ink pads! I painted the outside white because it was such a mess I could not have stained it nicely (and one side is sawed off, so it looks a bit odd anyway).
The shelf to the right of it was a cast-off of my sisters, and the one on the left came from a goodwill store. So, if money is an issue for you, be creative!