I thought these would be fun to do. I got inspiration and measurements for the post-it holder from www.luvscrappingtogether.blogspot.com. The phone is "From My Kitchen" cartridge. Stamps and flower dies from My Creative Time, "Just a Little Note to Say..."
Here are the measurements to make your own post-it note holder:
For the base cut your cardstock at 3 1/4 inches by 7 1/2 inches.
On the long side score at 3 1/2 inches and 4 inches
For my layers I cut them at 3 inches by 3 1/4 inches and my patterned paper at 1/8 inch smaller than the solid.