Brandon has added an awesome perk to the Altered Perceptions campaign, and it's definitely worth looking into.
With this perk, you can join Bridge Four! Brandon has done auctions for cameos in the past, and those have gone for over $10,000. With the Altered Perceptions campaign, you can get in on the action for a set $6000. Yes, it's a little pricey, but it's definitely for a good cause, which you can read about on their campaign page.