"Array" being added to product names in checkout

Hi All

I was testing one of our sites (it's not really live) and I noticed that in step 3 of checkout the word "Array" is added to the product name.

Julia Strappy Sandals Array
One Touch Bullet Array

etc. It's on the final confirmation page. Anyone know what would cause this? The site is sextoy.us (warning adult content).

If you want to see it in action, go ahead and choose "Money order" as the payment method and put TEST ORDER TEST ORDER in the comments. I'll delete it.

Thanks!

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