Universal Battery Hold Down??

[metroplex]

I'm trying to make an Optima Red Top (group 34) battery fit properly but the stock hold-down doesn't work with the Optima.

Something like this: http://www.autotoyaz.com/unbatdowbrac.html

might work but that's $30, seems overpriced and I just need a simple universal-style hold-down that will work with a Group 34 battery.

Any ideas?

[RCSignals]

Doesn't optima sell a "universal" style hold down?

If you don't want to shell out $ for one, bungee cords are cheap ;)