Hills Swing Set
Plastic play gym
Sand Pit..made by DH
Trampoline
Bikes, trikes, scooters
Little tikes ride in truck
Totem Tennis
We have quite a few big trees, so in one corner of the yard, my DH has set up a 'secret spot' for the kids to play in with bench seats and a table. You can't even see them when they are in it
We also have an easel a blow up pool, cricket sets, golf sets, soccer nets and heaps of balls we get out when needed.
An old table they can do their painting on and messy craft things.

They play alot with all of the above.