Projects that are interchangeable are some of my favorites. They save time and money. Besides being adorable for Valentine's Day, I love this clothesline hearts project from Artsy-Fartsy Mama because it is interchangeable. Shamrocks, Easter eggs, stars, ornaments, turkeys, etc. could be used on the clothesline depending on the holiday. It reminds me of fun specimen art with a little twist! It would be fun surrounded by a picture frame too!