I make my 15mo DS oatmeal w/ fruit and veggie puree everyday. I'm not a big "wet oatmeal" fan, so I make it pretty thick and he gets a big kick out or piercing it w/his little fork and feeding himself successfully.
Kinderville has a great line of cups and bowls that are food-grade silicone (does not contain BPA, phalates, PVC and lead like plastics) that can be microwaved and put in the dishwasher, although I don't do either. They are safe, unbreakable, easy to clean and the silicone does stick to the tray a bit better than plastics that can slide around - although they BOUNCE if/when they hit the floor - HAHA! The bowls have very wide bases, also making them hard to tip. Occasionally they come up on flash sale sites, but you can get them for a good price on Amazon, too: http://www.amazon.com/gp/product/B002LZEJ9K
The long-handled, narrow, silicone-tipped spoons from the puree days don't work super well for self-feeding, so we bought some that were shorter and stubbier for little hands to grasp and he's doing great with them. Here they are in pink: http://www.amazon.com/Playtex-Baby-Mealtime-Utensils/dp/B...
For clean-up, he is NOT a fan so we sing "hands, face, bib and tray (while wiping each) then we can get down to play" and it works bc it's predictable - and I'm QUICK about it.
Fun times! Good luck!