Mark here with a mid-month update because a few things have happened.
Brandon announced previously that he will only be numbering 50 copies of each secret project. Now, copies #3 and #4 of Yumi and copies #5 and #6 of Frugal Wizard are up for auction. At the time of writing, they were sitting pretty at $5,000, $3,500, $1,251, and $1,075 respectively. I am not personally bidding on any of these, as I have decided that I am happy simply having a copy of each book/edition, and only getting numbered copies when convenient and not too expensive. If you're interested in getting these copies, the auction goes until Friday of this week. All proceeds go to the Lightweaver Foundation, Brandon's charitable organization, though Brandon stated in a reddit post that he's not sure exactly what this money will go to yet.
If you're not interested in spending insane amounts of money ($5k is the most I've ever seen any Brandon book sell for), there will be a giveaway for Brandon's newsletter subscribers this Friday as well. Only one copy of each book, it sounds like, but there's still a chance. If you're not signed up yet, go sign up for the newsletter now.
In other news, which comes from the Dragonsteel Books instagram's reel's description (the lengths we have to go to to get all the information sometimes... *sigh*) the Sel box from the Year of Sanderson will go on sale August 15th on dragonsteelbooks.com, less than a week away. If you missed out on the kickstarter or want extras of any of the items, this will be your chance to get them! Mark your calendars!