Paint the clay pot and dowel black and let it dry.
Put hot glue on the bottom of the dowel and insert it into the hole at the bottom of the clay pot. Hold it in place until it dries (about 1 minute).
Add filler to the bottom of the pot.
Put the gold coins on top of the filler, making sure that none of the filler shows.
Cut the ribbons off of your St. Patrick's Day sign so that you just have the hat.
Glue the hat onto the top part of the dowel using copius amounts of glue. Hold it in place until it dries (about 1 minute)
Snip off an appropiate sized piece of the shamrock garland and wrap it around the dowel.
Wrap the mesh ribbon around the back of the clay pot to measure how much you need. Then, cut off the piece and glue it to the back of the pot.