I went to their site.
Created an account with honest information.
Put samples in the sample cart and ordered them.
There was some sort of note area I used to say that I could not buy them in small numbers.
The parts were sent to the school. I do not think that mattered.
They picked up the tab for S&H.
Some of the sampling rules seem to be tightening up. For example, they will not send to someone with a "generic" e-mail address (I think that was TI, maybe Dallas/Maxim). You need something with a .edu or .com extension.
Allegro actually wanted the URL of my employer. I explained that my usual supplier was back-ordered (it really was) and they went ahead an sent me a couple of samples. John