No there isn't, you need the disk to wipe the machine good.
Apple menu > about this Mac > more info for a model like MacBook Pro 3,1.
Download MacTracker and punch that in, find out the original OS X version that came on the machine.
If < 10.6.3, then call Apple via phone for the 10.6.3 white retail disks
If > 10.6.2 then call Apple via phone for the 10.6.3+ machine specific versions of the OS X install disks.
How to erase and install Snow Leopard 10.6