Any tips for selling promotional products (pens, hats, glasses etc) to help build businesses?

I'm new to this field and mainly doing a side project. Affiliated with Kaeser and Blair.

Usually they would come to you, I have trouble believing you could do very well cold calling, search the web for Promotional Gifts to check out the massive competition.

$85.00 - Dealer Training Kit looks like typical profit up front thing...