A homemade birthday banner, made when my son was 3, and reused every year, since.
Maps, which came in the mail for free, used as gift wrap.
A Christmas gift bag, with the holiday tag carefully removed,
by untying the cord handle on the inside of the bag, to slide the tag off, for a "plain" gift bag. The tag was saved, and can be put back on the bag, to use as a Christmas gift bag.
A four-layer, homemade birthday cake. Yellow butter cake, filled with blackberry jam and cocoa buttercream frosting.