I'm going to ask people to pay a portion ($5 or less) for my birthday party at a laser tag arena
Why would you ask them to pay for it if you planned it?
The party is too expensive. I asked the manager to lower the price so people are more willing to pay.
Maybe you should just hold the party elsewhere? It is not okay to ask your guests to help pay for your party.
I'm going to make it a surprise and have my friend collect the money.
It is very rude to invite people to a party and ask them to pay for their portion. You shouldn't do it or you might annoy your friends.