Recycled bottlesany size and shape as long as the mouth is wide enough to fit a candle
Candles
Nonstick cooking spray
Small plastic container
Wood shimsoptional
Instructions
Remove any thick labels from the bottles (that might impede cutting or opening the bottle later). Rinse out and let dry.
Use a sifter (colander) to sort the bigger stones out of the concrete, into the bucket - you want to use fine particles. Put the rocks back into the bag or throw them into your garden.
Spray the candles with cooking spray at the ends to get them ready.
Mix the concrete according to package instructions in a small plastic container and pour into the bottles. Leave a little room at the top.
Stick the candles in the top and let the bottles dry overnight in a safe place.
Pull the candles out. The candles should slip out pretty easily due to the cooking spray.
Saw the tops of the bottles to start releasing the candles.
Carefully use a razor blade or box cutter down the side to further release the bottle.
Peel away the plastic and let them dry again overnight before displaying.
Notes
Sifting the concrete can be optional depending on the type you buy - you may not need to.