Check out the tutorial: Mason Jar Pen Holder Industry Standard Design
Origami Box Holders from x 11 Paper
Wood Slab Business Card and Pen Holder by Jennifer Priest of hydrangeahippo (Business Card Holder Diy)
Photo Pen Holder Click Pic for 20 Easy DIY Christmas Gifts for Grandfather Handmade Gift Ideas for Grandparents from Kids
Ever got a stock of useless CDs? Don't throw them away! Make a beautiful CD mosaic flower pot instead. I'm thinking mirrors might work with grout and a sealant.