Two-Piece Plastic Shot Glass Design with Screw Threads

I would like to design a mould that forms one of 3 sections of a speaker pod design that is 3D printable. It is the 10" subwoofer pod. The full speaker system is 3 parts. I need to make a mould I can pour resin into to save 3D printing cost of large 3D print. The mould needs to have a hollow inside volume where the speaker is mounted. Design is preferable to be a single cast but if not possible it can be a two piece mould that attaches two half spherical designs together or a preferably a single one. Creativity is key. Software: Solidworks, Fusion 360 and/or Inventor but whatever can get the job done.

As discussed with Antanas

We want to make a silicone placemat for toddlers with extruding bowls (probably 3 bowls). The shape should be a dinosaur (maybe stegosaurus or t-rex). Please see attached elephant for an idea of what we are looking for. Simple yet elegant and appealing. The mat size should be 10"x7.7"x1". The bowls should comprise most of the mat, besides perhaps a 1" to maybe 1/2" border. The edges should allow for spilling a drink and the liquid would not run onto the table. Past the raised edges though, the mat should slope down towards the table. The idea is that the toddler (or even adult really) cannot get his fingers underneath the mat because it slopes towards the table. We also need a small credit card style tool to lift up the mat since it will basically be impossible to pull up from the table once you lay it down.

Design a simple yet elegant travel shoe horn with an integrated bottle opener

We need you to redesign the look of the taco holder (photo attached) to be even cooler, sillier, ridiculous and something everyone would want in their pantry. The most imaginative, hilarious and irresistible design wins!