Nonsense! Your post was great fun. The code was fun, too. I particularly enjoyed your comment about to how Pi was referenced in the bible, along with the ensuing rabbit trail of research that took me down.[1]

[1] http://www.tektonics.org/lp/piwrong.php

and how many combinations if I buy two sets?

The Ikea one seems more practical.

Thanks for your post. You've inspired me to write some code for similar problems!

You can create more arrangements if you treat the bridge like two pieces, which it is.