Instead of doing complex criss cross wood design, just do plain planks, stain light sandy colour and pain on a beach scene or incorporate a printed pic. Give to mom as doggie door (for keep dogs off stairs).
The perfect homemade high-value dog treats for training. Easy, inexpensive, and irresistible to dogs. Your pup will do anything for these things. Also cat friendly–your cat would probably be willing to trip you for one. ** See more about happy dogs.