My vote for the best product at the Expo was the Helo Static Line Anchor System from Capewell Aerial Systems.
No more making your own. This system is preconfigured, complete with padding and will sustain more than the required 5200 lbs dynamic load (two jumpers simultaneously falling 14 feet). In fact, they tested the system all the way up to 12,000 lbs.
It also comes with a kit bag for storage which can also be used for recovered d-bag storage while in flight