Supersize version of part 892 with "minifig at work" sticker to be printed then glued/assembled. Bricklink part: https://www.bricklink.com/v2/catalog/catalogitem.page?P=892pb029 , seems to only appear in two sets.
Picture of a 200% print attached, 400% in progress.
I traced a picture of the sticker using inkscape then moved to Fusion360 to emboss part 892. The uneveness of the triangle is deliberate to represent the experience of using Lego stickers so be careful when assembling the final model to ensure everything is correctly oriented.
Printed with 0.8mm nozzle as an experiment.
The author hasn't provided the model origin yet.