You want to use something someone else made and don't want to pay what they are asking, right?

well gee yes that's all about you

What is the irreplaceable bang this freebie adds to a promo?

Background setting, prop, clothing, hair?

Please promos are supposed to be subject centric, the product is the subject anything else is a distraction

If you're trying to sell an add-on for a freebie good luck none of your "custumers" are likely to pay to add to a free item of less then V3-V4 figure status/calibre

A word is not the same with one writer as with another. One tears it from his guts. The other pulls it out of his overcoat pocket
Charles Péguy

 Heat and animosity, contest and conflict, may sharpen the wits, although they rarely do;they never strengthen the understanding, clear the perspicacity, guide the judgment, or improve the heart
Walter Savage Landor

So is that TTFN or TANSTAAFL?