Source for "Timber Toppers" or Alternative

[stewart_photo]

Years ago, most photo equipment catalogs, hardware stores, and so on, sold a product called "Timber Toppers." These very inexpensive spring-loaded grey metal caps, manufacturered by Brewster, slid over the end of 2x4's cut slightly shorter than ceiling height, with both then wedged between floor and ceiling to jointly create a sturdy support for studio backgrounds, lights, and so on. They were also quite handy for creating temporary shelves (primary use outside photography) and similar. Rubber gaskets helped to avoid marring the ceiling.

Sadly, now that I once again have a use in mind, it appears these things (along with the manufacturer) have entirely disappeared from the market. Does anyone know where I can purchase "Timber Toppers" or a very similar alternative online?

stewart