Personally I just steal branches from my university campus. Every year they trim the branches and I kid you not, they are giant pieces of birch that I generally have to borrow a truck to bring back home. I then de-bark them with a knife and then soak them with bleach water and leave them out to dry in the sun for 3-5 days. You can buy untreated, cheap pine wood bases from any Home Depot or Home Hardware store. Plus you can put cheap stick-on floor tiles for the bottom to help prevent the wood from being damaged and leaving it easy to clean.
Alternatively, a great idea is to get in contact with individuals who like to do woodworking. Chances are they have access to different types of wood and can make amazing wood stands for a commission price far cheaper than buying the Java wood stands.
I've made my own wood stand out of birch branches at the cost of $10 for a pack of stainless steel wood screws. It's not perfect nor beautiful, but I've accumulated more ginormous branches that I'll be making a new play stand out of next summer. Here's a not-so-good picture of it:
Avery enjoys going to the bottom and chewing on the wood, which is perfectly safe:
I've also made my own orbitals with Super Cotton from a favourite online bird store of mine (less likely to come loose) and wooden embroidery hoops. The big hoop is in the background of the first photo:
And here's a different of the little one since Shiko's head was blocking it:
I think shortly I'll buy PVC joints and hot glue the rope into the joints to make them more secure and less likely to fall apart. I've also since changed from hanging the orbitals with rope to hanging them with big plastic play chains that Shiko genuinely enjoys playing with. They're big enough that they won't get their feet caught and they're nice and colourful to the birds too!