Forty_two's redstone operated Upvote/Downvote arrows + counter
This was originally only built to have the arrows, but I eventually added a counter to the side so as to show how many times the buttons had been pressed (counts the range +3 to -3). It doesn't have a warp anywhere near it, but can be found along the southern border at (1635,-1155).
Unfortunately I wired the counter connection using wireless transmitters between the control circuit and the controls in an attempt to reduce the number of years the redstone took to activate, but the receiver requires a reliable clock of some sort to work, and there really isn't anything that fits the bill at the moment. The end result is that until I find something better than a craftbook IC clock, the counter circuit needs resetting every time the chunk is unloaded. The arrows will always work though, they're connected with plain old redstone.