Use a shortcut to create a custom tile in Pin More

Open Snowy Dune Launcher if it isn't already open and select the shortcut you want to create a tile for. Click Send to Pin More.

Shortcut details

Pin More should open and you'll have the title and url already filled for you.

Pin More's title and url textboxes

Choose an image to use as logo for the tile clicking Add image button.

Tile logo

If you want to customize your tile further before pinning it you can see what other options you have here. When you're done click the Pin to Start button.

Pin to Start button

Click Pin to Start.

Pin to Start dialog

You now have a nice new tile in your Start screen!