UK importer requests: Fridge Magnet

I am looking for a factory that can produce MY OWN custom fridge magnet design (not Egypt, not your existing designs).

I want to make a Bradford souvenir magnet, based fully on my design.

Product details:
• Shape: heart
• Material: zinc alloy (Zamak)
• Back: hollow, thin wall approx. 1–2 mm
• Front: 3D building design (Bradford city)
• Colors: painted souvenir style
• Size: similar to Turkish magnets