1. Books. Read, donate, done.
2. CDs. Upload to iTunes, donate, done.
3. Tickets to a thing. Theatre, concert, museum, expo...
4. Super fancy food. Eat, enjoy, done. Could be booze, cheese, chocolates, pie, cake, oils/vinegars...
Yes, these things are maybe not optimal value for money or what you would have bought if you were doing the shopping. But you'll be able to receive them, enjoy them, and then not be burdened by hauling them around for the rest of your life.