When my girl came back after staying 3 days with her relatives, all I did was this: I went to Walmart, bought a 99 cents pack of water balloons, aired them all. There were about 40-50 of them.They were not too big.I tied them all together in a string.Wrote so many "lovely" things on them and put them right inside the front door where she could see them when she enter the house. She was extremely happy to find so many decorated balloons.She still has them all (most of them flat now).I spent 99 cents all together. Do anything crazy, make it sudden.She will love it. DP.