While Mom or Dad really needs to do the cutting, it's easy for the kids to do the decorating. Just start with the center of a heavy duty roll of duct tape and let your kids' crafting instinct take over from there...
A mailing envelope + a roll of duct tape (you have to get that center spool from somewhere, right?) and an Apple sticker is a great project that your kids will find easy to put together and that will protect your iPad whenever you're on the go.
Nothing says I love you than turning an orphaned sock into a customized iPhone or iPod protector! If your little one is up to it, you can cut down the sock and then sew the top to prevent ravelling. If not, use the fold-over-technique shown here.
Your iAccessories don't need to stray when your kids build you a fabulous one-of-a-kind holder out of popsicle sticks and hot glue. Stability might not be a strength here, so use your gift with caution, but certainly your Apple Remote is going to feel and appreciate that love!