I love this little art display above my baby's cot. It ended up being quite affordable too! I bought these lovely nursery rhyme greeting cards from a card shop in Taupo a few years ago now and I framed them with simple white square frames from the Warehouse which were only about $10 each. Again this was a while ago but I find sometimes you go into the Warehouse and there are heaps of great frames and then a few weeks later there are hardly any! Or you could go to an op shop and see if you could find some frames there. The hardest part was getting them all straight and evenly spaced on the wall! I really like the white frames against the green wall and the card illustrations are so sweet.
In her room we also painted the wardrobe doors with magnetic paint. It needed three coats over the top of it so it isn't particularly strong- just holds flat, light magnets but my todder and her friends love playing with them! Will have to move them up soon when the baby starts crawling though!