(out-hershey "\\rm2b@3 C_6H_{12}O_6}")
(out-hershey "\\rm2b@3 \\int e^{x^2/2} dx")
(out-hershey "\\rm2b@2 \\horiz 123 \\vert 456 \\horiz 789")
(out-hershey "\\rm2l@3 S{\\small MALL} C{\\small APS}")
...But maybe the best examples are yours?