After reading the many cool DIY reader projects at diyphotography.net I saw a cool idea for a cheap and easy DIY snoot for my Vivitar 285HV. So since I have nothing but time on my hands lately, I decided to make one although mine looks different and is much bulkier. I basically used 5mm foam board from Japan's infamous ¥100 stores ($1 USD), cut out the shape and taped it together. Realising it was way too bulky to be transportable, I decided to add a DIY grid spot that fits inside the snoot with relative ease. I made the grid spot out of corrugated plastic craft stuff, cut it to size, glued it together and then taped it up.
With snoot + grid spot