If you have information regarding the price of promotional items or advertising, please post it here. The idea is to figure out what things cost, and what kind of marketing budget/donations we would need to get things moving. I'll start things off with a flurry of googling for some ballpark prices for customized promo items:

Playing Cards
1 deck: $22-$25 each
100 decks: $4.25-$8.00 each

Lanyards
100 lanyards: $2.00 each
250 lanyards: $1.25 each

Pens
cheap pens $0.18 each
decent pens $0.45 each, and up

Coasters
500 cardboard coasters: $0.49 each
300 mousepad coasters: $0.79 each

Mousepads
24 mousepads: $4.75-$5.95 each
100 mousepads: $2.09-$3.49 each