Just finished up a custom one off Batman topper. The Batman logo is out of 1/8 steel and painted matte black. The letters for Why so Serious are laser cut out of 1/4in acrylic. The Ha Ha letters are laser cut out of 1/8in red acrylic giving it a nice 3D effect. The cards are printed on heavy stock paper and glues to a piece out acrylic and Velcro to the back of the topper. The customer had asked for the cards to be removable and Velcro them to the back was the simplest and most cost effective way of doing it. All in all the topper came out great.