There's none in shops or trades and I'm wondering how much they are worth.

Unfortunately for me, because I want one, most likely a lot. I wouldn't consider under 50M for a quicksale, and that's a quicksale, meaning than due to how many minion collector there are, you could get more

Reanimated Chicken was in the 25-30M ballpark for a while, and most likely really inflated as well.

Thank you for the info. :)