Conjunction is a remarkable effect with a very simple description. You take one of your business cards, give it a series of folds and tears, and in the process transform it into an impossible object: two unbroken cardboard rings that end up linked through one another.
So, you may ask, what sets Conjunction apart from the multitude of other effects that have bits of card linking together? Simple: You do it for real. The rings are given away in their genuinely linked state, from which they can’t be unlinked without ripping them. They can be examined indefinitely with no danger of anyone finding any seams, joins or tears, because there aren’t any.