This was a very quick, fun, and cheap project that took me less than an hour after I had purchased everything. In total this ended up costing around $10 dollars.
For this project I used
6'10'' of 1'' PVC pipe
3' of 3/4'' PVC pipe
less than a roll of duct tape
3 stretchy exercise bands
2 four way 1'' connectors
4 1'' elbow connectors (I could only find T connectors, but they still worked)
4 3/4'' straight connectors
1 135 degree connector
1 3/4'' T connector
2 clamps (or other way to secure it to the table
(I'm not sure what the official names of the connectors are, feel free to tell me)
many of the measurements I'll give you can be different depending on what kind of table you want it on
Step 1: 1'' Pipe
This is a really simple step all you have to do is cut four 18'' sections out of the 1'' pipe. Next cut two 5'' sections from the 1'' pipe. Put two of the 18'' sections on opposite sides of a four way connector do this with the other two on a different four way connector. Put the elbow connectors on the ends of the pipes. Then using the 5'' pieces connect the elbow connectors to one on another pipe. It should end up looking like a rectangle.