Roomies got a nice new blender, just got some xanthan gum in so I figured as hot as it is it's time for some alcohol freezes.
Anyone unaccustomed to xanthan gum: it's a stabilizer/thickener that will make smoothies/frapaccinos/etc not separate. Useful for artificially thickening most anything (sometimes great for fixing a dip that came out too thin). Stuffs great to have around because it only takes a tiny tiny amount for it to do it's thing, so buying it will likely last you nearly forever.
You might be able to find it at sprouts/whole foods/gmc. Guar gum also works (guar gum is more "natural", xanthan is processed from sugar somehow). It's easily available online as well.
xantham is made by bacteria that they feed with sugar and and few other nutrients.