We love seeing all the ways people make Ikea products their own. If you're not looking for a true hack or want something less permanent than paint, Mykea offers stickers sized to fit some of Ikea's most popular pieces. And...they now ship within the U.S.
The stickers are removable so if you start with flowers for your baby, you can change to robots for your older child and the company pledges that they won't harm your furniture. There are dozens of designs to choose from (and I'd recommend not limiting yourself to those in the kids section) and the collection is growing. Perhaps more exciting is that Mykea lets you create your own design. They're working on a design upload function, but you can email them in the meantime to get it done.
Mykea is based in the Netherlands and used to ship only within Europe, but now they have supplemented with a printer in the US and shipping in the states is $10.