Small wearable motor unit sample for moving one fabric petal. UK-based freelancers preferred.

Hi,
I am a design student working on a conceptual fashion prototype.

I need one small, ready-made motion module that can move one fabric petal edge slowly and smoothly, creating a gentle wavy motion.

What I need:
• One compact motor-based unit (servo motor is fine)
• Plug-and-play (no coding needed from my side)
• Low voltage (5V) and safe for wearable use
• Back-and-forth pull movement of about 1–2 cm
• Small enough to be hidden inside a skirt waistband

I will design and make the skirt and petal myself.
I only need the motion device.

You should provide:
• Fully assembled, working motion unit
• Short video showing the movement
• Simple instructions on how to attach a thread/string to the petal

Important:
• Delivery location: London, UK
• Deadline: 6th February
• UK-based freelancers preferred due to the short timeline