This was my #1 most popular download last year. The 12-sided calendar is also known as a regular dodecahedron. The upcoming year (2012) will be my 5th year with one of these on my desk. It's pretty tricky to assemble - especially at the end when you feel you need another set of hands. Do all cutting, scoring, and folding first; then all you have to do is to remember to do NOVEMBER last. It is the only month that doesn't have any fold-over tabs. It is helpful to have a chopstick or bamboo skewer handy to poke inside to assist in securing anything that's not sticking or properly aligned. This prevents bending the paper. I used card stock and scored all the dotted lines with the sharp tip of a compass guided by a see-thru ruler. Cut out whole design before scoring and folding. Cut solid lines, score dotted lines. I also had to adjust the pdf to "fit to printable area" since without that correction some of the outside edges did not print on my printer. If you have finished your shopping you might want to make some for holiday gifts. People love them and everybody needs one. You can't beat the price either. One sheet of paper, some glue and your time. The ultimate home-made present that will be used every day next year. Perfect!
Download PDF 2012 Calendar Template here. (showing MONDAY as the first day of the week)
Most American calendars show Sunday as the first day of the week. I used this template to make my 2012 calendar.
I don't know if I can correctly call this origami because it requires glue. I highly recommend YES Paste - Acid Free. An $11 one-pint tub lasts forever.