Love this idea!!!!! A book for back and forth letters between mother and daughter. Write and leave on daughters bed. when shes ready she can write back and leave on your bed. Back and forward you go. What precious memories you could create. Could do the same thing for dad's.
amazing graduation present for your kids (or nieces/nephews)! Every year write them a letter until they're 18, and put a small amount of money in it, then when they graduate - give them all the letters + money!