We're big on building and imaginative play, and wooden blocks are great for both these things. This set from Melissa and Doug is prefect to build some epic dinosaur castles, or wicked witch towers, or whatever you can dream up. $52.
My son used this scooter every day 1.5 miles to and from day care. So it's seen a LOT of miles. It's got a great wide base for little toddlers, and turns really well when you lean (I've used it). It doesn't fold up, which is the only drawback. But I feel that it's worth the trade off for the stability. $50.
To go with bikes, scooters etc, we really love this helmet. It's light weight enough that my toddler will wear it. And it survived (unfortunately) one MAJOR digger and kept his noggin safe. Plus, it has the build in sun visor, which actually helps keep the sun out of his eyes, although not quite big enough to keep the sun off his face entirely. Starts at $26
Magnatiles. This is one of the best building sets we own. The shapes click into each other and so it helps toddlers with building because they just need to be "close enough". Plus, you can make some really amazing structural shapes. They're pricey, but this set (100 pieces for $119) is a better deal than the 48 piece set.
This is one of those toys that has unexpectedly gotten a LOT of play in our house. It folds up easily to be put away (my favorite aspect) but it pops out and is very impressive for a small kid. We got this when my son was crawling, but it's now "grown" with him and is a major obstacle course item now that he's a full grown toddler. $15 is worth it for this great rainy day item.
Ball Pit Balls
With a small space in the city, I try not to get toys unless they're going to last and get used a lot. Surprisingly, this qualifies. We got an inflatable pool (see other photo) and these ball when my oldest was 6 months old for a ball pit for when he was crawling but needed to be contained. He grew out of the pool, but the balls are still a huge hit in our house. They're perfect for throwing them at each other. And nothing is more cathartic than throwing a ball at a toddler.