These are scrapers for scraping off wax from skis. The Openscad code is parameterizable. You can input the length, width, thickness (height), and angle of the edge of the scraper to suit your needs. Commenting or uncommenting the cylinder at the very bottom of the page will provide a hole so you can hang your scraper. 

The longer one is a klister/kick wax scraper based on a klister scraper that I have from skinny skis (I can't find the link anymore, but it was about $12 and I printed it with 19g of PLA)

The shorter but wider one is a more general purpose scraper and can be made wider to suit wider skis like alpine skis. I printed that one with 20g of PLA.

The groove scraper has 4 different radii, 3mm, 4mm, 5mm, and 6mm. It took 7g of PLA to print.

For all prints, I used 1.2 mm wall thickness (3 lines for my printer), a top/bottom thickness of 0.8mm, and an infill of 15%