Words formed from any letters in koolahs plus optional blank

n -

solon₇

p -

spook₁₂

spool₉

s -

solos₆

sooks₉

t -

sooth₇

sotol₆

stalk₁₀

stook₉

stool₆

talks₁₀

tolas₆

tools₆

w -

wahoo₁₀

walks₁₃

whoso₁₀

wools₉

woosh₁₀

y -

yahoo₉

yolks₁₂

z -

zooks₁₈