Water Bottle Cooling Element

I need a plastic prototype design in 3D. This object is a hollow ball (20mm in diameter, 1mm in thickness). The ball is composed of 2 parts (top and bottom piece). The top piece will slide into the bottom piece. On the top of the ball are small air vents (0.7mm) that form the shape of a circle. The bottom of the ball will have an opening (4mm diameter). There is a small arch inside the ball that sits at the base. The arch will extend from one end of the opening to the other. The arch will will be 1 mm in thickness. I have attached images I created with paint.

We are looking to design an portable water purifier with UV - C Led bulb and to make a jacket of UF tinted glass to protect the eyes / skin when the UV-C is immersed in water. IF the UV-C is not needed to be immersed in water and yet disinfects the germs and bacteria we can consider this aspect.

I need a bicycle drawn in Autodesk Inventor 2013, with the following conditions: - All the project MUST be done in Autodesk Inventor 2013 - The sizes of the parts are random, but must always have only one decimal place (eg: 13.4 cm) - The sizes must be in Metric system. - I'm going to need the drawings of ALL parts and all assemblies, like a fabric would need to be produced. - A drawing of the final product must be made, in the same conditions as above. I still don't know how much I'm willing to pay, but since I've received offers of 80$, that will but the prize I'll give. Of course that, if someone shows me that his/her work deserves more, I'm willing to pay that extra. I'll be accepting sketches until June 23. After that date, I'll decide the winner and he/she will have until the end of the month to finish the project. Any question please contact me. Regards, Acubadazi12

I am creating a personal project and I require the assistance of an individual to design the actual casing. The electronics will be housed inside something that essentially looks similar to a laptop but to correspond with my concept and idea I require it to have the following look, futuristic, sci-fi/robotic along with a gaming aspect. I have a PowerPoint presentation with images that I find rather appealing which will assist you with the project. I am not sure of a price so please ignore what I have listed above, I do not want to pay something ridiculously obscured due to the fact it’s a personal project. Thank You.

Hello, the shampoo bottle we are designing will have silicone strips on the sides of the bottle for a better grip. The strips will have a texture on them, so the contest is to create the most stylish/sexy/cool looking texture for side strips. At the moment the texture is as on the file provided, please use the strips in the file to draw on. The most interesting and good looking design will win. The shampoo bottle will be sexy, slick and stylish.