OK, here my idea:
thin down PVA a bit (to slow the drying rate)
dye it red
cut some pieces of wool string of approptiate size and thickness (the nets where vegetables are packed in could be useful too)
separate a portion of the glue mix and dunk the wool into it - let it soak
take it out when it is between viscous and liquid - arrange as necessary
separate more of the glue mix for different shades of red, drip the gloopy consistence stuff on the strings
varnish it glossy with a brush and several layers