I haven't made any uniforms or logos for any Des Moines teams (yet?), but here are three Old Judge Baseball Cards depicting players in uniform: Charles Brynan, Leech Maskrey, and Robert Emmerke of the 1889 Des Moines Prohibitionists. The Maskrey card says 1888 on the front, but according to baseball-reference.com, Maskrey played for Des Moines in 1889 and the Milwaukee Brewers/Creams in 1888. If anybody else is interested in putting together some uniforms from this era across many leagues, I found these at the
Library of Congress website.