Not that they will have a problem knowing their fish ;) but doesn't hurt to have a reminder!!
20 Creative Bottle Cap Ideas (Recycle Crafts) - Craftionary
Industrial Bar Cart https://www.reddit.com/r/DIY/comments/4a5z6f/industrial_bar_cart_wood_black_pipe/
DIY - Industrial Pipe Bed!
Take your hallway coat hook rack from ugly and dangerous to sleek and modern! These folding coat hooks are the perfect solution for providing temporary storage in the heavy traffic areas of your home. - thehandymansdaughter.com
Beer caps crab
Pallet Bar. I like this idea. Should be fairly inexpensive too. Paint it red and place on a white wall for an IU Hoosiers candy stripe look.
20 Creative Bottle Cap Ideas (Recycle Crafts) I've got a ton of buttons that would make a great wreath, also.
Beer cap wreath -- Great for Father's Day or for your "Beer Garden"
bottle cap fishing lures - Google Search