Anyway. New McDonald's commercial. This guy is going from place to place with a dollar and asking "What can I get for a dollar?" as he holds up this dollar bill. He goes to a travel agency, where he gets a little palm tree; he goes to a dry cleaners, where he gets a hanger; he gets in a cab, then promptly gets out; he goes to a tanning salon, where he gets a little brown dot sprayed onto his cheek. See evidence below.
Wait a minute. What's that? He has all these goods in hand but he is still holding on to that same measly dollar bill. So, his plan was to distract the vendors with his stupid ass question, get them to give him free shit and while they are wondering what medication he is obviously NOT taking he walks out without paying the one dollar for the palm tree, hanger, etc. Asshole.
So, he arrives at McDonald's and asks the over zealous cashier "What can I get with this?" and the cashier promptly lists all of the things that cost a dollar. This makes the man happy. The next shot we see of him he is scarfing down about $4 worth of food. So, in fact this lunch did not cost $1, it probably cost about $4 you fucking cheapskate.
What can I get for a dollar? Apparently whatever the hell you want.