Dining room seasonal wall? Photography is a great cheap and easy decorating accent. Get out and take photos of flowers, trees, and anything found in nature and print them out and place in inexpensive frames. Look how in the photo above they have placed them in a nice grid pattern to make an eye-catching display that truly says Spring!
Using small clear clips to clip photos together. Simple easy fun wall display! Cheap too! Print the images with a white border to give each image for of a framed look!
Hmmmm. I like this idea except for the idea that you have to put thumbtacs into the wall. What I would do is buy a sheet of foamcore from the hardware store and paint it, then attach it to the wall, then tac into that. That way there are much less holes in the wall.
Crocheting - Make a super-cute rag rug out of 1.5 inch strips of old sheets, curtains, etc. No-fear videos show you exactly how to crochet it. use jersey knit sheet set? only 10 bucks for entire set at walmart.