In my opinion I do not think you should wear a tip button. It makes some people feel uncomfortable, and they won't be responsive to your magic. This is going to make YOUR night more uncomfortable, because your audience won't feel at ease with you. If you can show them that you're there to make them have a better time, you will make money. If you really want to make more money, show the manager how valuable you are to the restaurant and negotiate a higher guaranteed pay each night. It's nice to know that your money is guaranteed as opposed to having to count on tips. .
I know with your 90 days experience you are somewhat knowledgeble. However I have only doe restaurant work for 6 years, the last 4 years full time, so if I may just put in my opinion.
You are OUT OF YOUR MIND! I average $1000 a week income, more than half is tips. So why cut your income by just taking the "performers pay" from the restaurant.
Tip buttons do not in any way make people uncomfortable. In the six years I have worn my buttons only 2 people ever said anything negative and that is because they lost thier sense of humour in the war, I think. My buttons say "I WORK FOR TIPS" and "SUGGESTED TIP $2435.80" I explained the reasons above for that number. When I don't wear the buttons my tips are down by more than half. With buttons you don't have to drop hints about money.