For 36" bunting
Using stitch markers, mark every 15 chains from beginning. These will be the chains where you will attach the shamrocks.
Now, at the second chain from your hook, sc through each chain to the first marker. Insert hook into the marked chain and then through the stitch at the top of a completed shamrock, yarn over, then pull through both the stitch on the shamrock and the chain, then slip stitch. Sc through the next chain and in each chain to the next marker. Again, insert hook through the marked chain, then through the stitch at the top of another completed shamrock, yarn over, pull through and slip stitch. Continue to the end, attaching shamrocks with slip stitches and sc in each chain between. Fasten off and weave ends in.