first is a cult bizarro italian horror film called Succubus which i did an entry about ages ago. now you can watch it: here. i tried to do an insert via blogger but there were to many hits.
then there's the less Italian and less stylish Invasion of the Bee Girls. fashion models with giant sunglasses are converted into Bee Girls. so stylish in their outfits.
an honorable mention should also go to one i've seen briefly but could not find anywhere - 'Carry on Screaming'.
for the mannequin TF sequence / scene.