Free trial for paid subscription (PayPal)?

[gengar56]

I'd like to use PayPal's free trial feature for my vBulletin paid subscriptions. That means members can join and see what it's like without having to pay for it, until the end of the trial period. Is there any way to do this? Maybe a mod?

[msvi007]

This sounds exactly like what I am looking for. Anyone?

[Stangsta]

Its built in already. Its called "promotions".