My daughter just earned her driving permit, so we need to teach her how to drive. To make things easier, I looked at buying a few traffic cones to set up as barriers for her to drive around. But ones that are tall enough are also somewhat expensive - more than $10 apiece for the cheapest. We don't have a long term need for them, so I thought that we'd make some, instead.
Five Below was having a sale on their summer items, including pool noodles for $1 each. Then we went to Lowes and bought four 5-foot lengths of half-inch PVC pipe ($1.33 each), four PVC crosses ($1.26 each) and four PVC tees ($0.54 each).
In hindsight, I could have made these with eight tees because we didn't use the fourth leg of the crosses. I'm not running back to exchange them.
To make these, cut two of the 5-foot lengths in half and attach them to the middle of the tees. Using the other lengths of pipe, cut four 2-inch segments and twelve 6-inch pieces. Use the 2-inch pieces to connect the crosses to the tees. The 6-inch pieces form three legs, two from each cross and one from the other end of the every tee.
The pool noodles slide onto to vertical, 2-1/2 foot length of pipe.
The final cost was $16.54 plus tax.
Another benefit is that everything is merely press fit together, so the pool noodles and PVC fittings can be used later.