My hypothesis is that the leprechaun will go up the ladder, it will see the gold, then it will go in because it is so tall it won't get out even if they aren't real.
I got a tall container, got a green bead necklace and put it al around the bottom like grass, then I put fake gold in a tree log stump that is plastic.
I think I did my best job with the leprechaun trap but i did change the gold pot and the beads around
I think it will work great because it won't get out.
How it works
The leprechaun will see the gold then it will climb the ladder open the door then fall into the tall container and won't get out.