Contour Plots.

Here are two examples of contour plots of 2p states created using Wolfram Alpha.

Several things to notice:
1) for the x-y plane (where z=0) I write r as sqrt(x^2+y^2),
2) I left out the "a"s. That is, I set a=1. (so everything is in units of .053 nm)
3) The range is specified. (That is what the x, -6, 6, y, -6, 6 part does.)
(These are not off-center hybrids. They are pure p states; the second one is rotated 45% via a superposition of x + y.)