I used small amounts of Red Heart Super Saver Economy in yellow, black, blue, grey and white from my stash (left over from my last minion project). Any worsted weight yarn in those colors will work.

Since babies feet vary greatly in size, I’m simply guessing these will fit 6 - 12 months based on the size of the feet of the baby they were made for. He was 9 months old at the time. You can easily adjust the size of the slippers simply by adjusting the size of your hoo up or down accordingly.