Want to give a gift that keeps on giving? How about radioactive uranium glass marbles? The UK store, Anything Radioactive sells working Geiger Counters, t-shirts, signs, books, and of course, radio active marbles (so you can make sure your Geiger Counter is working). Sounds harmless... ;)
A couple of interesting FAQs from their website:
Are Geiger counters radioactive, dangerous or illegal?
A: Simple answer here â€“ Absolutely not. No, and No!
How about radioactive samples?