Be prepared. Your grandchildren might not want anything. Hopefully, they might take an item or two that they always liked and that reminds them of you and your home around the holidays.
I cleaned out the home of a friend who was a holiday decor nut. She had so many items....not cheap, collectibles that cost her over $100 each...some much more No one wanted them.
She had Christmas, Easter, Fall, Halloween, Valentines Day, St Paddy'S Day and Patriotic decor.
I tried to give to family, then friends, then yard sales and finally donate. Hardly any one wanted anything. Even the charity shops did not want holiday decor.
If I had the time, I guess I could have tried e-bay, but her house needed to be sold and everything had to go. I just couldn't sell or give away much in the time frame I had to work with.
I gave some stuff to a bunch of kids at a yard sales and they were happy.
Only the Halloween and Fall stuff had a lot of interest and most of it was sold.
I too, have a bunch of Christmas and Easter stuff sitting in my basement. I no longer decorate.
I guess I will ask my kids and grands if they want anything.
I hate throwing this stuff out, but I know that is where some of it will end up.
I hope your grands are interested. I would ask them.