Our daughter wanted a play kitchen for Christmas. After many hours of research, and not liking any of the commercially available ones, we decided to do it ourselves as my favorite was one I saw on Apartment Therapy made using an Ikea side table.
Since we didn't have an Ikea nearby, I went to Joanns, and luckily found the perfect unfinished wood 2-cube shelf for $35, which served as the base. Dave got the rest of the elements cut at Home Depot, 2 doors, the face plate and the back splash, which were all cut from scrap so cost very little ($4 total), and the cuts were made for free by them.
The knobs were also available at Joanns for $0.50 each (I would get smaller ones if I was to do it over), the burners were unfinished wood plaques, and the faucet was a Paper Mache alphabet S cut in half! The shelf was an unfinished CD shelf which works perfectly. We pasted hooks underneath so that utensils could be hung.
My favorite element is the oven rack which is a chrome shelf available at the grocery store.
I got the vintage accessories at one of my many thrifting expeditions. The total cost was about $60 in all, we are so pleased with the results, and she LOVES it!
Here are some drawings to print out in case that helps...