
I once made this little couple using beads and wire. Not sure if that’s your thing, though.
Making a nice card with an origami suit and wedding dress is really easy—just follow video tutorials—and it goes quickly. Spice it up a bit with a punch or embossing machine (if you have one).
Or make a small wooden chest or box and perhaps put a gift certificate inside, or give a small bottle filled with white bird sand and seashells—decorated with little cocktail umbrellas—for an upcoming vacation… there are lots of ideas, but on such short notice?
Or a little beaded tree as a symbol of the tree of life for their marriage.
Buy a large, thick candle and decorate it with candle wax (hearts, clover leaves, or the names of the bride and groom).
I hope I’ve inspired you with a few ideas. Good luck!