reminds me of that time we were playing innocently on a lightly modded smp with some friends, and one of the furnitures mods had a very simple bloc: a stump on which you can sit, that's it
but it could be pushed by a piston
instead of just using it for decoration, likemost would, we designed an instant block conveyor and tried to send a player along it
building that on smp would have been incredibly expensive but you could have reached speeds higher than all other methods of transport, except tp