Me Want Pet! by Tammi Sauer, pictures by Bob Shea is an amusing story about cave boy. He wants a pet, but no one else in his family likes his choices. The illustrations in this book were rendered digitally. Bob Shea's Website is fun, he's a real character himself.
My favorite part of Me Want Pet! is when the dad is allergic to Toothy. The illustrations are simple, but they portray a lot of movement and are bright and lively.