As in, it'll float like one. A variation on the Doculator, this one's tied for the Mother's Day Caddis; change colors/size to suit your needs (anything smaller than a #14 and you may want to use .5mm foam)

hook - Dai Riki 280 #14
thread - MFC 8/0 dark olive
body/underwing/head - 1mm foam olive
wing - deer hair
hackle - barred dun

Part 1

mash barb, start thread, wrap to bend and back




taper foam strip (not quite gap width); tie in






brush shank with a little Super Glue, wrap to bend, then back to tie in; tie off/trim (if you manage the tension properly, you can get a reverse taper)






taper end of another foam strip (gap width), measure for length (a bit past the bend); tie in, wrap to eye








fold foam over to create a little head; tie off/trim