We had a couple of these personal tables from Walmart (as seen in the link) http://www.walmart.com/ip/Lifetime-Personal-Table-in-Almond/13449271
. We paid under $20 for them. We took the legs off of one of them and installed them on the bottom of the table top. Worked great. With the new PC 2012 we are using the spider legs supplied by Phoenix. They work just as good, if not better. Here is a picture of the table with the new spider legs.
We have seem them for sale at a couple of RV stores. What has made it work really great for us is that we pressure fitted the legs into the spider portion so they are now all one piece. They store really nice and are very sturdy.