Time Out says
The Trashy Bags initiative was set up in 2008 as a means of recycling and reusing the endless plastic water and yoghurt wrappers deposited on the streets of Accra – more than 20 million plastic sachets have since been collected. The refuse is washed and treated before being stitched together to form a huge range of bags and accessories. The range includes everything from shoulder bags and backpacks to rain macs and briefcases. They also use large old canvas banners to produce bags reminiscent of the recycled Freitag products. While the Osu store is no longer there, you can buy directly from the factory in Abelenkpe.