Much like the Moon (see Moon reply), Mars is too smooth to scale. That said, Mars does contain one detail that would be fairly perceptible, which is Olympus Mons with an elevation difference of almost 20km to the basin on its west. However, even that, on a 200mm sphere, would only be a mere 0.6mm tall. This is actually fairly stunning considering that we are talking about a "to scale" detail and one would both be able to feel and see that. However, in the end of the day it would still mean that even on the largest printable Mars globe (200mm), the end effect would be a smooth globe all around, minus a small 0.6mm tall bump on it. Mons Olympus is also not a particularly "pointy" volcano either (it is in fact as wide as France), so the bump's gradient would be fairly underwhelming as well.