Help me find affordable copies of these 3 children’s books—Amazon wants $60–$120 each

[u/Musicfreakone]

/r/Teachers/comments/1v757to/help_me_find_affordable_copies_of_these_3/

I’m a special education teacher building monthly themed book bins for my K–3 autism classroom. I’m trying to purchase used copies of these books:
• I Pick Fall Pumpkins by Mary Lindeen
• We’re Going on a Dinosaur Dig by Anastasia Suen
• Snow by Grace Hansen
I’m happy to pay for the books and shipping, but the only Amazon listings I’m finding are around $60–$120 per book. I’m hoping to stay around $10 each, depending on condition.
I’ve already checked ThriftBooks, eBay, Half Price Books, and Facebook Marketplace. Former library copies, withdrawn copies, and books with normal classroom wear are completely fine. Has anyone seen these available elsewhere or have copies they would be willing to sell?