My take on the Make: birdfeeder webcam.

Step 4 Seal the jar

Spread silicone sealant on top of the lid. Place on the bolt and tighten the nut. Thread the cam in place. Spread silicone sealant on the cork with the cable and place it in the hole. (I thought about sealing the threads of the jar but I still want access to the cam. As a precaution I put two little silica packs inside to help prevent condensation inside.)