Greets, Papa.
This topic was brought up some years ago on another forum. Paper placemats in local diners. The general concensus from those who claimed to have tried it was not good. But don't be discouraged. More on that later.
From a personal point of view, Downstate Delaware has plenty of diners. Most have those paper placemats, ringed with local contractor's ads and mentions of the local high school football teams. No DJ companies are to be seen. Neither are photogs. Some feature local catering companies, though.
The idea was brought up in one of our local networking group meets back in the day. A few of the folks had done some research on these things. Evidently, it is a waste of DJ company advertising dollars. Diner patrons are not looking for DJ services.
That being said, bubble parties could have an entirely different and more positive result. Remember, little pups are your target market. Pups are taken to diners. The pups notice those placemats. They see 'em and may bring your ad to the attention of the parents. Even if the parents don't pay much mind to the ad at the time, the idea of a bubble party will stick in the pups' minds.
I realize that I'm straying out of the realm of your original post so forgive this old dog if you will.
Marketing to children is a multi-million dollar enterprise. Market to 'em when they're young and they'll remember. In a nutshell, you don't market directly to parents. You market to parents via their pups. This is why candy and toys are placed on the lower shelves in store checkouts. Pups see (and want) things that are placed where they can see 'em.
Retail shelf location is a multi-million dollar business, trust me on this. Few adults see those Mars candy bars and M&Ms 'way down there. But you may wager that the Mars candy company has vested millions of dollars for that shelf placement.
But I digress. My suggestion: Try it and see. Design your ad copy with a smiley, fun logo that the pups will notice. It must appeal to your target audience. Pup parties are special and fun with bubbles.
John Allo's AV here is a good start. Just don't use it without his permission, please.
You may also wish to include a feedback kinda thing ~ mention the diner placemat ad and get "X discount". This will give you an idea of how your ad placement(s) are doing.
I hope this helps.
