Duplo base plate for SEN classroom (North Colchester, CO4)

My partner teaches kids with special needs, and the SEN classroom has Duplo for them to play and learn with, but it doesn't have any bases for the Duplo to stand on (which is an issue due to reduced hand-eye coordination). Because they don't have any budget to purchase them, he asked me to see if anyone had any their kids have grown out of using or were otherwise lying around.

I believe Lego baseplates are also compatible so these would also be appreciated

Of course, happy to collect. Thank you for reading.