I have all 3 Generations 30th Anniversary triple-changers (Blitzwing, Sandstorm, and Springer) for sale. They are all new MISB, and the boxes are in collector condition w/ no dents, creases, tears, etc. Asking $100 USD w/ free shipping. Please no international buyers, I only ship in the US, sorry. Please PM me if you are interested, thanks!
I hate to be the one to say this, but you're not going to get any takers. Especially while anyone could still get them in store for almost half your cost.
I could never find them anywhere and I had to go to 3 different stores out of state to get them all. So I figured they were a little rare and I've seen all 3 sell on ebay for $100 before. I listed them on ebay earlier but I also put them on here just for more exposure and to hopefully sell quicker.
Honestly, you might be better off just returning them to Walmart. If you don't have a receipt, you could at least get store credit for them. You'd probably be looking at around 70 dollars total with tax there. That's going to be your best bet to get the most value for them. I've been able to locate Springer and Blitzwing pretty easily at most stores around me, and have recently started seeing Sandstorm show up more frequently. There's no demand for them much higher than their current retail value. Most online websites have had them up even cheaper than that recently, so you're likely going to see a lot of trouble getting them sold anywhere near that price.
