One easy and fun activity is a simple scavenger hunt! You can help your toddler search for different everyday items around the house - a great way to develop those developing motor skills.
Another idea is making 'art on the go' - rip up some coloured paper into small pieces and place them in a container, along with some glue sticks. Toddlers love the sensory experience of sticking the bits of paper together like a collage while also developing hand-eye coordination. You can have different themes for their artwork too!
For some physical activity, you could organize a little obstacle course in your backyard or even indoors if there's space. Set up a simple course with household items - a great way to encourage movement and physical stimulation, and also super fun!
When it comes to toys, I'd recommend those large building blocks for some open-ended playtime that encourages creativity. Or, for something simpler, soft fabric scarves that can be used as a prop for imaginative play - your toddler can practice their puppet skills or twirling them around is a great sensory and physical activity too.
Anything that involves lots of movement and touch tends to be a hit with toddlers! So all the running, jumping, feeling different textures, and of course plenty of laughter too.