Synthetic Spider-Man - Research into why geckos can stick to most any surface has yielded success. It turns out that tiny hairs are responsible rather than any chemical. Researchers have been able to synthesize these hairs and verify that van der Waals forces are able to keep them sticking - even to extremely smooth polished silicon chips.

As soon as they start manufacturing Spider-Man gloves, I'm getting them on preorder. See: Scientists discover what makes geckos stick.