Step 1: Materials You'll Need
• Two 2-liter plastic bottles
• One smaller plastic bottle, between 591 mL to 700 mL in size. Get one that has five bumps on the bottom (like the 2-liter bottles, as shown in the close-up picture above).
• One “Tornado Tube.” These are used to hook two plastic bottles together and are often found in toy stores. They can also be purchased online, such as from Amazon.com: http://www.amazon.com/dp/B000GYSZOI/
• Optional: Hair dryer and Goo Gone to clean the bottles up.
• Utility knife
• Epoxy that works with plastics. I used quick-set, multi-purpose Loctite epoxy and it worked great.
• Funnel or construction paper
• Optional: Grass/grass seeds, small leaves, rocks, twigs, etc., to make a natural foraging area for the ants.
• Shipping tape
• Cotton ball
Step 2: Clean Up the Bottles
Tip: To more cleanly remove the labels, use a hair dryer for a few seconds on the parts that are attached to the bottles with glue – this will melt the glue. If there is a little glue residue left, use a product like Goo Gone to remove it.