Many rewards are dependent on the release of the video to distribute. Some have already been distributed (e.g. the custom pajamas). The limited edition shirts have not been sent yet simply because getting sizing information from everyone took forever (the issue with not being able to specific required information fields for donators up front!) and we couldn’t place our screen printing order until we had every size (because printing just one shirt if someone got back to us just a little too late would balloon in cost to something like $50!) However, those shirts have been ordered now and will be mailed soon.
In general, though, assume that you will have all of your rewards within a month of the video’s release. I wish I could be more specific, but unfortunately video production (as all the delays have proven) is not an entirely predictable art.