PaperTerrain have released 15mm and 25mm American Civil War paper miniatures.
From their announcement:
PaperTerrain continues to expand its range of paper miniatures for the American Civil War. Out latest sets are Union and Confederate mounted cavalry. The 15mm sets have 192 figures for $15.00 and the 25mm sets have 120 figures for $20.00. East set has a variety of horses, uniform types, weapons and equipment. Dismounted cavalry and horse-holders are coming soon. We have also just released single sheets with infantry command stands and mounted officers for $3.00 each.