That sounds a brilliant idea, Moira. You might also be interested in this from Willows Hedgehog Rescue https://www.willowshedgehogrescue.co.uk/working-together-raising-strimmer-awareness.html
Sadly many hedgehogs are also injured or killed by garden machinery in people’s gardens. This is the time of year when many people ‘tidy up’ their gardens and consequently use strimmers and other garden machinery. A Good time to put up posters reminding everyone of the dangers to hogs. Here are links to a couple of posters:
https://www.britishhedgehogs.org.uk/posters/dangers.pdf
https://chascreek.blogs.com/.a/6a00d83451ded069e201b8d1046a8c970c-popup
