I picked up that old jelly jar at a thrift shop for 50 cents. It perfect for small sewing items because the lid fits on tightly. I think I ended up needing 29 or so of the shamrocks for our mantel.
I'm not sure what the rules are for sharing crochet patterns.... I do like to keep copies of things on my site too, just in case the other person looses their site or deletes the post. I'd hate to not have a copy of something because I relied on a link. This is from Skip to My Lou who borrowed and or adapted it from Suzie's Stuff.
So here is the pattern for a shamrock: Chain 4, join with a slip stitch in first chain to form a ring. Petal (make 3): Chain 3, trc, dc, trc, ch 3, slip stitch in ring. Stem: Chain 6, sc in 2nd chain from hook, and slip stitch in remaining four chains. Fasten off. Weave in ends.