Build a DIY lap desk using wood scraps, tutorial by Jen Woodhouse from The House of Wood with free plans by Ana White.
Laptop lap stand by foradoescritorio
How to make sensory toys and using them with a trabasack sensory play tray. Toys for children with special needs can be costly. It is often easy to create toys for children to play with yourself by using objects around the home.
Styrofoam (cups or otherwise), kid's book and plastic tray to lap desk with storage compartment
How to Avoid Power Struggles with Kids: Choices - Dirt and Boogers