With short range wireless technology becoming increasing prevalent in the various cards we hold in our wallets, Serge Negrashov decided to make his own radio frequency shielded wallet to block any potential wireless data snoops. He used extremely strong Kevlar-Nomex as the fabric and painted the inside with silver epoxy to give the wallet its shielding quality. If you’re looking for a budget version, he says that regular epoxy with a layer of tin foil might work as well. What do you think of RF shielded wallets? Better safe than sorry or overboard paranoia? [via Hack A Day]