Kodak didn't stop making 127 until the early 90's if I remember correctly and it is still possible to get 126 film on the internet, some is deep frozen stock but others is new cut down from sheet or 120.
110 film can still be gotten deep frozen from the US but the problem is that all of it is Fuji Superia 200 when the 110 film sensing lever only actually senses low speed as 100 and high speed as 400 so you have to have 1 stop under/over exposure (can't remember which it senses it as).
The easiest way to get 110 film though however is to get some expired stuff, crack open the case, remove the film and in a darkroom or changing bag respool 16mm or cut down 120 into it. This only works with some higher end cameras though like the Pentax Auto 110 as it doesn't need the perforations on the sides of the film.