shows us that you don't need money to have great bases.
From Two Inches of Felt
STL (3D Model) – $10.00 USD
Hex-based terrain boards with hill and road features for creating a 3D battlefield.
Each tile is a large hexagon made up of smaller 1.93 inch (49mm) hexagons. This is the largest hexagon tile that can fit on a 220mm print bed. If you have a larger print bed, you can scale them by 103.6% to achieve two inches.
Hills slope up in 5mm and 10mm increments. Tile risers can be used to raise any tile by 10mm so you can have any terrain feature at any height. Multiple risers can be stacked to ever increasing heights.