These boards are putting the ‘A’ in STEAM, and now we have fiberglass replacements for enamel lapel pins. [jglim] didn’t have much experience with fabric, but a PCB lapel pin was something ...

Set them up in a triangular formation, like a bowling alley. Then you're ready to play. If you're feeling creative, you could tape card or paper around your bottles. You and your child could draw ...