I've been working on a "Mini SHG", following the SolEx 3D printed concept by Christian Buil.
http://www.astrosurf.com/solex/sol-e...tation-en.html
In my case $2 lenses from Surplus Shed and 3mm MDF housing.
Using a 2400 l/mm grating, 19 micron slit gap and an ASI 178 camera. FireCapture at 350 fps.
Initial trials have been hampered by the weather, but early images look very promising.