Hmm, well, it has been asked on here several times about a birthday invitation and donations for charity. Since many of you think it is tacky to ask for half and half, how do you know when the person is asking for donations, that the money is really going to charity? I don't want to be negative about anyone but how many gifts get used after a party?? I have 3 kids (16,14 and 8) and I know they have opened many gifts simply because the giver wanted them to open it, and it rarely or never got played with. I would hate to think my money was wasted on something that just sits there or gets thrown out/given away without being played with. My 14 year old was good about not opening what she knew she didn't like and we always made a trip to walmart to return things, she would get a gift card and buy something she wanted. I think it is fine to donate money to a bike. I am sure a bike will get lots of use. You didn't say where the party was or how elaborate the party would be. We have spent little on parties in the past and the kids always had fun. Someone said, the invite assumes you will bring a gift, well, really who would go to a kids birthday party without a gift? So, while it could seem tacky, at least you know the money you are spending is going to be put to a good use, not a toy wasted sitting in the bottom of the toybox.