There were so many details that went into this to make it budget friendly. Almost everything was DIY.
Favors:
-crayon bubbles: found on clearance at World Market (not pictured)
-playdough party pack (not pictured): http://www.amazon.com/Play-Doh-Party-Pak-10-Tube/dp/B000096O8J
-DIY Crayon box: made by yours truly on photoshop. I don't know if I can share the template due to Crayola copyright rules, but here is a great generic one: http://pinterest.com/pin/99571841730937480/
-Molded crayons (not pictured): http://pinterest.com/pin/99571841730937517/
-Paint chip notepad (not pictured): http://pinterest.com/pin/99571841731008115/
-Buckets were from the Target dollar spot after Christmas clearance
-Balloons: Helium tank and 30+ balloons for $20 at Walmart (more than enough for favors and decorations)
Decorations:
-DIY Paper fans/pinwheels: http://ruffledblog.com/diy-paper-wheels-backdrop/ (inspiration: http://pinterest.com/pin/99571841730934851/)
-DIY cake stand from Goodwill items: http://pinterest.com/pin/99571841731102539/
-Streamer inspiration: http://pinterest.com/pin/99571841730900221/-All the other decor was white--tablecloths, dishes, plastic forks/spoons/knives, cups, etc.
Food:
-DIY Rainbow cake jars tutorial: http://pinterest.com/pin/99571841730911694/
-Rainbow fruit tray inspiration: http://pinterest.com/pin/99571841730934842/
-DIY Polka Dot Cake tutorial: http://pinterest.com/pin/99571841730972252/
-DIY Layered Rainbow Jello recipe: http://pinterest.com/pin/99571841731002280/
- Cake decoration: cream cheese icing with rainbow sprinkles. I cut out a "C" from parchment paper and laid it on top while adding sprinkles. When I peeled it off, I just had to retouch a few spots and it was a prefect C :) Inspiration: http://pinterest.com/pin/99571841731038475/
-DIY Rainbow Spiral Cookie recipe: http://pinterest.com/pin/99571841731081251/
-Iced cookies with rainbow sprinkles were funfetti cookies with white icing
Activities:
We covered the dining room walls with plastic drop cloths used for painting and then used a long roll of butcher paper and taped it to the plastic. We let the toddlers go to town with crayons for the first half of the party and then switched out the crayons for water colors during the second half. They had a blast! After cake and presents, we went outside to enjoy the nice day and played with sidewalk chalk as everyone grabbed their favor buckets and said their goodbyes. With toddlers, this was the most "structure" we could handle!