First you shape tinfoil into a heart shape and cover it with white glue. Next you rip up the tissue paper and stick it on the places where there's glue. When you think you've got it thick enough, then put a coat of glue on it and if you want to you can put glitter & sequins on.
If you want it to be really strong put another layer of glue on top. Then you can stick a paper clip in the top and put a string through so you can hang it on something.
You can also make your own shapes, like a candy cane for Christmas. Have a good time!