For anyone wanting to hide gifts and save on wrapping paper, use boxes out of your pantry. When I start collecting gifts I hide them in my pantry in empty food boxes, they would not look into. I glue the boxes shut. Oatmeal, cake mix, even canned vegetables. Use the can opener that cuts the outside of the can rim and creates a cap. I put the gift inside and glue it shut.
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Up until last year when my sons turned 25 and 26, I would have a scavenger hunt for the last (biggest) gift. I would make 5 clues (rhyming, of course). One would lead to the next and so on until they finally had to figure out the hiding place.