Can sketch my ideas & physically build a rough test model

I am looking for someone who can do two things:

1.⁠ ⁠Listen to my product idea and sketch it out clearly.

2.⁠ ⁠Physically build a rough basic model of it, using simple materials if possible.

I do not want CAD files, 3D renders, digital images, UX design, branding, or a polished prototype.

I need someone who can actually make a simple physical version so I can see whether the idea works in real life.

The model does not need to look beautiful. It does not need to be factory-ready. It can be rough, basic, handmade, and made from wood, plastic, card, foam board, 3D printed parts, brackets, hinges, magnets, or whatever simple materials make sense.

The important thing is that you can think practically, sketch the idea, and then build a physical proof-of-concept model yourself.

I am based in London and would prefer someone I can meet in person first, but I am open to discussing options. I would prefer someone based in London and or near London.

I know some designers are like "any designer who is worthwhile makes cad drawings and renders". Back 200 years ago, there were no computers, yet people made things, inventions were still created. I need an 'old school' mindset because I just purely want a person who can and does make things in their home. Also, someone who has a great understanding on how things work and when things won't work.

Please quote for an hourly rate, as I would like to find someone I can meet on a regular basis for various product ideas, not just x1.

Also, before any work commences I would ask you to sign a simple NDA for idea protection. Thank you.

**Important note:
Important clarification about CAD and digital work: I am not preventing anyone from using CAD, digital modelling, computer renders or any other tools they feel are useful in producing the physical model. Use whatever methods you need or want to use behind the scenes.

However, I do not want excessive time spent perfecting polished digital renders, and I do not want to be charged for hours of digital work that I have expressly said I do not require. Any digital work should be kept to the minimum in what is genuinely needed to create the physical prototype accurately.

The work I am commissioning and paying for is the physical rough prototype, not a beautiful computer render. Also as I said I am not looking for perfection I am looking for a rough physical model that won't win any awards on beauty.