Small Footstool Padded Footstool, Rectangle Short Step Stool Footrest Wooden | eBay
StrongTek Adjustable Foot Rest for Under Desk, 3-Level Adjust Incline, 7" Step Stool for Kids Adults, Ergonomic Foot Stool Relieves Swelling, One Step Stool with Non-Slip Surface for Home and Office :
Build a Step Stool in an Hour : 7 Steps (with Pictures) - Instructables