On our walk in the sculpture park we stopped in the carriage house, where Emily works, and there we met Rachel, who shared a mosaic (above). She explained that you stick your finger in glue and then apply it to the tile before putting it down.
Asha How do you take them off?
Rachel You can’t take it off. Once you put the glue on it sticks forever.
Travers It looks like a man or a cow. I think that’s a man and that’s a cow.
Asha It’s kind of like a X.
? X marks the spot.