I'm not a big fan of "mouse guns" but if you want to conceal these small frame models, here are a few suggestions;
The DeSantis Nemnesis & SuperFly holsters are good for pocket carry. They are ambi & have sticky material that grabs the fabric.
I think Ken Null markets a custom shoulder rig that has white straps & white polymer. It holds the weapon in a old school(60s/70s) type upside down draw.
Larry Magill's website; www.glockstore.com
sells deep concealment holsters(t shirts, underwear, bands, cases) that might work.
Greg Kramer's popular holster line has a few garments too.
I think Galco had a slick leather shoulder holster for small pistols but it may have been discontinued.
There are plenty of hip/strongside holsters in Kydex or leather out there. See HighNoon Holsters, Galco, Don Hume, Bianchi, Alessi, Blade-tech, FIST.
As for ankles, I'd check out the Ken Null line, Bianchi, DeSantis, or Gold & Goodwich. Author & respected protective expert, Leroy Thompson likes the custom Null ankle rigs.