Once you have used up your existing plasters, re-stock your first-aid kit with PATCH biodegradable plasters. The plasters themselves are made from bamboo fibers, they are individually wrapped in a hygienic biodegradable transparent film, backed with paper. They come in a handsome cardboard storage tube which could be used to store other things once it is empty. There are plain ('normal' looking) plasters available in their range, but I couldn't resist the panda-motif ones...