Ideas for toddler fun while having a newborn

L

Trying to limit time out to avoid viruses for our newborn has made life pretty boring for our 2 year old. Any ideas on fun things to do that would be low on germs and ok to take a newborn to? So far I’ve been letting him pick out toys at Walmart and trying new things at home like cooking together, play-doh, sensory boxes. How is everyone else entertaining their toddler with a newborn?