Ideas for a new house dress / wrap apron

Ochrolechia tartarea lichen (crottle /crotal) 
Used as a dye in the UK (red/purple), aparently collected in May - June then soaked in urine for weeks before being dried  in 'cakes' in peat smoke to dry.  
Called 'crottle' or 'crotal' in the Highlands and Islands of Scotland. Pen and ink drawing, with photoshop for colour and design layout.