I'd skip the raffle ticket thing and just do a silent auction, but it might be too late for you to pivot. The league my kids used to play in did this as part of opening day when you had all the teams there from T-Ball to Junior League. Set it up in the high traffic areas in your complex or next to your concession stands and you have the parents and grandparents looking at that stuff to past time until the ceremonies start or their kid plays later. We had each team either put together a basket of some sort with a theme or they would solicit a business to donate an item, event, trip with a nice monetary value to start the bidding at. For example, a team might decide to do a camping basket and utilize a cooler as the basket and fill it with camping items. As a parent I had no problem donating an item or money for them to buy items for the basket. And I imagine for the league officers, it was easier to collect money and the such from the sale of a few dozen baskets and donated items vs trying to corral ticket stubs and money from the team managers and moms.