1. Stained glass jars. I bought some special glass paint to make faux stained glass on a window, and I’ve been casting around for ways to use what’s left. I just love the beautiful Mondrian-inspired stained-glass jars created with translucent paints by a blogger at Mason Jar Crafts. If you don’t have stained-glass paint you can get a similar effect simply with colored Sharpie markers. The jars would look great lined up in a sunny window, or as a candleholder for a tea light.

2. Glass-jar terrariums. A larger jar, such as for spaghetti or salsa, would be ideal for a miniature terrarium landscaped with moss, stones, and succulents. For terrariums with the jar on its side, some straight sticks could be hot-glued to either side of the jar to keep it from rolling. Just the right size for a desk or a windowsill, these projects would make for a good teacher gift on the first day of school!

3. Calm-down jar. I love the idea of glitter-filled jars that can help young kids reign in their emotions by watching the swirling sparkles settle. But since there has been a lot of press recently about the environmental damage done by glitter, I recommend using an alternative. I’m going to try it instead using some plastic beads saved from one of my kids’ favorite necklaces that broke. You could also try it with sand and small pebbles.

4. Jar aquariums. My fish-loving daughter will go crazy over these mini aquariums, filled with rocks, plastic sea creatures, plants, and blue-tinted water. They’re a fun project for a birthday party or an after school playdate. Look for small toys and trinkets to decorate the aquarium with. I can imagine other jar dioramas that could make use of plastic animals, dinosaurs, soldiers, or fairies that otherwise might get lost or tossed.

5. Wrapped bottle vase. If you don’t mind your kids turning last night’s wine bottle into today’s craft, making a pretty yarn- or string-wrapped vase is a fun and simple project. I like this one because it also upcycles the odds and ends from my yarn stash, none of which are quite enough for a whole knitting project.

6. Twinkly nightlight. The pretty blue, amber, or green of a bottle makes a nice nightlight. This project requires lots of adult involvement since it requires a drill and a hot glue gun, but the results are well worth it!

7. String holders. Perfect for kitchen twine or balls of gift-wrap ribbon, these painted string holders are so cute! Kids will have lots of fun panting a face onto the jar lid.