Except for the Kramer ballplayers, which were not cheap, my Popsicle ballpark was dirt cheap to make, and a good Scrounger's project.
The scoreboard and Yankee Stadium centerfielder monuments are made of scrap cardboard painted black and the ends of Popsicle sticks:
More popsicle sticks glued and painted blue for bleachers:
The fencing in the above photo (I think it's chicken wire I cut a long time ago) was dirt cheap.
The Woodland Scenics Blended Turf above and Fine Turf below, which are great products IMO, are reasonably priced, as is their spray glue.
And the billboards, which IMO add a lot to the scenes in the above photos, were inexpensive. I bought them used (not new), from a LHS for very little money.
A couple of my billboards cost nothing because they are homemade; one is a Ritz cracker billboard and the other is Bigelow Tea billboard (Bigelow advertises now with the Yankees including TV commercials with Joe Torre), that I made from cut outs from Ritz and Bigelow cardboard boxes.
Ritz is the billboard on the right:
The Bigelow Peppermint Tea billboard is in the photo immediately above on the right behind blue bleachers with several sitting figures.
This ballpark was my most fun Scrounger's project. Arnold