A package of undecorated terry cloth bibs can be purchased at Babies R Us at 10 bibs for about $11. Wash the bibs first for shrinkage. I cut a heart shape from paper, transferred it to a template and cut cut fabric hearts. Then I fused them to Wonderunder or something comparable. First I fused a heart or shamrock shape to the bib. Then I put the bib on the light box to align the back heart to the front heart so the bibs would be reversible. Iron the back heart on the bib. Once the hearts were fused to both sides of the bibs, I used the machine feather stitch on both sides. It seems to be the stitch that is most forgivable in not showing mistakes.
When the thread color is the same as the bib color, the stitches tend to sink into the terri cloth and not show as much. Voila...quick and easy and very practical for travel and use with babies/toddlers.