3D design for a lovely four-leafs clover keyholder

Looking for someone to design a concept ecig and then into in to real life 3d render of your design we would also require a 3d model to pass to the mechanical designer. This does not require any mechanical designs it's a concept only. The materials that will be used are black gloss Carbon Fibre as the outer casing tube, with a pattern cut out exposing a rose gold plated tube that can be seen throughout the cuts in the carbon. Other fittings like top & bottom covers, rings and bottom button in rose gold.

3D model a watertight locking iPhone case, for each sized iPhone, that is designed to discourage iPhone users from using their phone too often.

Sir im new in gym industry im 21 years old i want to manufacture gym equipment im from india I want gym equipments designs which can give me some good business in my new work im gym equipment enthusiast i want some good gym equipment designs or rare ones or custom designs never seen before

We are designing a thick gauge aluminum mailbox (0.080” aluminum (2024 or similar) front and back; ¼” (6061 or similar) lid). We are having problems finding an off-the-shelf hinge for the lid that meets our evaluation criteria (below). Lid is a thick, flat piece of aluminum, no bends. Final product will be powder-coated.

This product provides an added volume boost to iPhones. Ultimately, we'd like to create an audio booster accessory that plugs directly into an iPhone. You would then be able to plug your headphones into this accessory so you can listen to your music at louder levels. We'd like to have it so you can control the volume/bass/treble levels through a mobile app. If not, then it could be something like this FiiO product (http://fiio.net/en/products/53) but wireless. It would also be similar to this product, but also wireless. https://www.kickstarter.com/projects/1746450443/uamp-soul-shaking-audio-for-your-ears/description No firm dimensions. At most, it would be as wide as the iPhone itself. Design should look like something Apple would have designed. Something sleek. For colors, use the same colors as the iPhone 6S. There needs to be a Power button, Vol+ button, Vol- button, and either a battery indicator or battery light.