This is perhaps the most famous and well-known method to delay your release.

• put some ice-cubes in a stocking
• thread the stocking through a ring
• connect the keys to your handcuffs to the ring
• tie the stocking high up enough so you would not be able to reach it while bound.

Voila! You are all set for the adventure. But here are some tips, though...

• The ring MUST NOT have any rough edges, otherwise it (and, eventually, YOU) may stuck
• Put additional weight to the ring to help it slide off the stocking when the ice has melt down.
• If you use rope (e.g. cinch noose ) instead of handcuffs, you can tie a plastic bag (with a knife and weight in it) to the ring.