So, I came up with these 'Toilet Roll Terrors', or Bog Roll Bogles, if you're from my part of the world. Essentially, it's two LEDs forming a simple circuit centred on a 'coin slot' for the watch battery that powers the whole thing. It's all put together with tape, garden wire and a toilet roll.
Read on to see how they're put together.
Step 1: You Will Need
- One standard toilet roll inner tube
- a roll of black electrician's insulating tape
- One Lithium CR 2032 watch battery
- Two coloured LEDs (red or green works best)
- Two five inch lengths of garden wire, with the plastic casing stripped off
- A craft knife
- A pair of pliers with a wire stripper
You can do this without the craft knife and pliers, they just make it much easier to cut, bend and trim things as you go.
Step 2: Prep the Tube
Once you've made the central cut, gently push the battery into the slot to make sure it fits.
Finally in this step, cut two quarter inch slits at either end of the tube, ready for the LEDs.
Step 3: Insert and Bend the LEDs
Bend the legs of the LEDs out and smooth them against the walls of the tube.
Step 4: Create First Contact
First, slide one of your garden wire pieces into the battery slot, leaving about an inch sticking out.
Bend the wire over so it lies flat, then tape it down.
Step 5: Connect the LEDs by Folding the Wire
Once folded along the outside length of the toilet roll, carefully bend the wire down into the other end and across the contact leg for the other LED.
Pinch all wires as flat as possible, then tape them in place.
Make sure that the wire going along the outside of the roll is completely covered in tape and won't touch the battery when it's in the slot. Also make sure that your wire hasn't snapped or fatigued as you bend it - you ideally need quite malleable wire which can be folded and bent 180 degrees without snapping.
When taping the wire into place, make sure you press the tape hard against the wall of the tube to keep the wire tightly against the LED legs.
Step 6: Repeat Steps 4 and 5
Step 7: Insert Battery, Test and Tweak
Once the battery is in place and the LEDs are lit, go over all the connections, pressing down hard on the tape and wires to make sure everything is firmly in place. Finally, paint, spray or tape the whole thing black if you want to make them blend into the bushes better.
You should now have a simple pair of 'eyes' which you can slip over a tree branch or balance in a bush. For the best effect I find having them slightly far back among the leaves makes them look more scary. Try putting them in small groups and at different heights. Have fun!