OK, I know they aren't trainers, but they are adidas keyrings depicting the Manchester and Dublin from the City Series - available on eBay for not much money 😀
Adidas Originals Keychain 【rare Limited】adidas mark vintage | eBay
Vintage ADIDAS Promo Key Ring PAIR OF SHOES Keychain Coppa [B3] | eBay
Adidas "Superstar" Run DMC - Sneakers 3D Keychain – VNDS Kicks
Adidas Original Keychains, Everything Else, Others on Carousell