The implementation of multiscale roughness has demonstrated a variety of interesting outcomes when a liquid droplet impacts such a surface. It has been shown  that when water drops of size D ∼2 mm impact superhydrophobic surfaces they can recede, rebound (top), jet, and even splash (bottom). Here we investigate the effect of drop size on surfaces of increasing roughness over We ∼1-5. As we expect, drops of size D ∼2 mm will bounce for We ∼ O(1 − 10), but what happens if we decrease the drop size while holding the Weber number (We) constant?
 P. Tsai, S. Pacheco, C. Pirat, L. Lefferts, and D. Lohse. Drop impact upon micro- and nanostructured superhydrophobic surfaces. Langmuir, 25:12293–12298, 2009