Infinite number in stock

[Alart]

Hello!
I sell product which can be easily multiplied, so I want my zencart to never mark it unavailable. I have checked already "Admin>Configuration>Stock>Subtract stock", but it switched off for all of products. I want some to be tracked and some not.
Is there any easy way to mark an item infinite? Maybe even with elegant, finite, constant number in display? Somehow, I don't like idea of having 99824 in stock.

Regards

[Ajeh]

Is there anything in the products table that identifies these Products that should not have their stock altered?

Things like particular manufacturers_id or master_categories_id or something in the products_model?