We found this cute idea for a bubble calendar at Recyclart, and could instantly picture it on a wall in our office. At last, a DIY project that we can actually tackle without power tools, heavy lifting or trips to the craft store. (But if you don't want to DIY, you can buy one.)
The real challenge, of course, isn't making it. It's forcing yourself to pop only one bubble per day.
@ Recyclart, DIY
@ Bubble Calender, from $30