The CARGO balls are out of stock at AndyMark and Sportime. I found another source, the same part number (1293618) at Mansion Schools.
If anyone else finds another source for this part number ball, please post to help your fellow FRC teams.
They currently show as “Ships in 2-3 business days” on AndyMark’s site. From my past experience working with them, I can say with pretty high confidence that AndyMark is not doing a backorder on this.
AndyMark has more in stock, and we are getting additional shipments in this week.
Indeed, AndyMark has them back in stock and I ordered some. Go AndyMark!