Massive accelerators like the one at CERN create particles that can exist for as little as billionths of a second. But you know what lasts even shorter? The cardboard box a deck of cards comes in, leaving you with a loose deck and missing cards, unless you grab this clever alternative.
The Hold'em, available from Animi Causa for $US8 ($11), is a simple silicone band that's designed to wrap around, and securely hold, a standard deck of 52 cards without cutting into the edges or warping them by squeezing too hard. It also features a double-sided King design, similar to the face cards in a deck, so there's no mistaking what it's supposed to be used for.