Make a wind chime out of old keys and acrylic paint. - This site has lots of cheap outdoor/backyard ideas. I can't use most because I live in an apartment - but I love the old key to windchime and spray painted folding chairs.
Take a old favorite family recipe in your mom, grandma's, etc. handwriting and burn it onto a cutting board using a scan of the original recipe card- a treasured Christmas gift, Mother's Day or Wedding Shower gift.