Gaetan Bloom's Linking Pins (with Online Instructions) by Mayette Magie Moderne
As in a ballet, the two pins unite and disunite, always and without stopping, before the astonished eyes of the spectators... It's so beautiful and pure, that everyone wants to see the pins at the end... and we can! The closer we are, the better it is... and it's even more impossible!
Easy to do.
Provided with the pins + the gimmick + video instructions