I have made these before - so easy! Lowes sells the 4 to 6" round PVC pipe with holes already drilled. Purchase an end cap, fill with rock, soil, and plant. I will often put these in the center of a very large pot to stabilize, and add amazing height and color to a container that has trailing plants (no end cap or rock needed if you are placing in a container) LOVE THIS!!
To ensure pollination of your raspberries, build a simple orchard mason bee house by drilling holes in a 4x4 and giving it a shingle-roof overhang. Secure the house to a sunny trellis pole, and the bees will come.
Mosquito trap - No more mosquitos!! Cut the top off a 2 liter bottle. Invert the cone and place it inside the bottle. Glue the two pieces together. Add 1 tsp yeast and 1/2 cup sugar to some luke warm water, and pour the mixture into the bottle. Mosquitoes are attracted to the carbon dioxide that you exhale. The yeast feeds off the sugar and emits the same gas, so the mosquito enters the bottle, thinking she will find food there. FLIES LOVE THIS!!! Have caught 1000's of flies!!