The are the base game Mary Janes Shoes convertet for boys.
This mod gives you the freedom to let your boys wear whatever they want. Finish the stereotypes and make your own decisions. It also fits good with other mods that let them wear dresses or long hair.
If your looking for ballerina flats you can find them here http://modthesims.info/download.php?t=539346 (Published on: 2015-01-03 12:00:00)