Pay-what-you-can pricing and giving levels
Set a tier to "Pay what you can" so no one is excluded by price. In the Tiers editor pick that pricing mode, set a suggested amount and a minimum (default $0 — no one turned away), or apply a preset scale.
Add giving levels — at each amount the buyer unlocks extra access (e.g. $30 → drink tickets, $50 → VIP), granted automatically at checkout. Link a fundraising campaign and every contribution feeds its live pledge-progress block.
Buyers choose their amount on the public page with quick-pick chips and a "you'll get…" preview. $0 issues a free pass instantly; any amount runs checkout.