I was prompted to remember this shop in Bedford by an article posted about a fake toy shop in Ayr. Some research turned up that it had a website, which I’ve linked to. The “real” shop had all the website products on display. It was created by (the legend) Tim Hunkin.

There’s a (warning: Daily Mail) article about it here, which is suitably outraged: https://www.dailymail.co.uk/news/article-1282867/Congratulations-losing-virginity-Council-spends-25k-fake-shopfront-crammed-bad-taste-products.html

And Tim himself describes the creation here: https://www.timhunkin.com/a155_making-seriouslysolutions.htm