These plastic bags which the dog food came in are very strong, and quite colourful. Seems a shame to throw them in the bin. You could make holes in the bottom and use them as planters, could even grow veg in them, or put a nice conifer in it. I decided to make a bag with this one.
Make a lining, and make two handles, insert lining and handles into bag, and put a row of stitching around the top edge to hold it in place.