Those squigs are gorgeous - are they conversions or scratch sculpts?
The 2-legged sguigs are scratch-sculpts out of greenstuff. The 4-legged mini-squiggoths are based on a couple of cheap dinosaurs.
The 4 little sguiglets are 10mm figs from Pendraken.
I have a WIP thread running in "Workbench" showing how i made them.