Sculpt simple cartoon head as .obj file

Industry: Art and Design
Design details: I need someone who can sculpt a head for me for 'use' in C4d. It does not need to be rigged or textured, just sculpted. It does not matter to me what software you model it in, all I need is a generic 3D file format, eg, OBJ or FBX

Here's a link:
http://www.mumof3boys.co.uk/wp-content/uploads/2016/05/mr-frosty-box.jpg

Looking at the character in the bottom left of the box, I just need his head modelling. Is this something you could do, how much, and how long?? I'd be grateful if you could get back to me. All the best. Sean
Target audience: Kids
Ideas for the visual style: http://www.mumof3boys.co.uk/wp-content/uploads/2016/05/mr-frosty-box.jpg
Preferred colors: Textures not needed
Urls to draw inspiration from: http://www.mumof3boys.co.uk/wp-content/uploads/2016/05/mr-frosty-box.jpg
Extra notes: