Amazon has the Toystate CAT Mini Machines, 3″, 5-Pack marked down to $5.88 from $9.99, at time of post.
I picked these up a few years ago as they came in handy for my son’s truck party when I made this super-easy Dump Truck Cake.
If you have a smaller party, you could always pick up a few extra packs and use them as your party favors.
These might be cute as Easter basket filler items, too.
Keep in mind that prices flip fast on Amazon so be sure to verify the current price before purchasing.