I designed these bases for infantry battalia in For King and Parliament. They are cut from 2mm MDF; 3mm diameter magnets (sold separately) can be fitted into the holes to secure them in storage or transport. The edges of the bases can be chamfered with a craft knife and the naturalistic appearance of the wobbly edges helps them to merge into the playing surface. 

This pack includes four FK&P4 bases approximately 40mm wide and 50mm deep, which each take 3-4 dragoons (or forlorn hope) on foot.