SolidWorks Redesign of 3 Novelty Golf Tees — Resize, Re-Engrave, Fill Cups, and Prep for Injection Molding Ended

PROJECT DESCRIPTION:
I have 3 completed novelty golf tee designs (cocktail-glass-shaped golf tees: Wine, Martini, and Margarita styles), currently designed for 3D printing. I need them revised and converted into injection-molding-ready designs. All native SolidWorks files (.SLDPRT, .SLDASM), STEP files, STL files, and reference concept art will be provided.

SCOPE OF WORK:

1) Reduce cup/bowl diameter by 10-15% on all three designs
The "cup" (top bowl) is currently too wide. Reduce by 10-15%, keeping the stem, point, and overall height (82.55mm / 3.25") unchanged. Current cup diameters (widest point) and rough targets:
- Martini: 31.3mm → ~26.6-28.2mm
- Margarita: 29.1mm → ~24.7-26.2mm
- Wine: 26.3mm → ~22.4-23.7mm (widest point is ~8mm up from the base — please preserve that bulged bowl silhouette, not a flat taper)

2) Replace the stem engraving text on all three designs
Change "SIP · SWING · REPEAT" to "PAR & POUR" (our company name), matching the original font/style/depth/placement.

3) Change the cup from hollow to filled with a shallow concave top
The current cups are hollow all the way down, like a real drinking glass. I want the cup to read as filled/solid, with only a shallow concave dimple at the top for the golf ball to rest in — not a deep hollow bowl. Please do NOT make this a fully solid block of plastic (that will cause sink marks and molding defects) — instead, core out the interior mass with internal ribbing/webbing as needed to keep wall thickness reasonable and consistent, while achieving the filled, shallow-dimple look from the outside. Open to your engineering judgment on the best way to execute this.

4) Convert all three designs to be injection-molding ready (DFM pass)
These were originally modeled for 3D printing and have no mold-friendly features. Please:
- Add appropriate draft angles to all vertical/near-vertical walls
- Even out wall thickness where needed to avoid sink marks / warping (especially the cup walls, the new cored-out cup interior, and the cup-to-stem transition)
- Add fillets to any sharp internal corners
- Identify and propose a sensible parting line for a 2-plate mold
- Flag any undercuts (e.g., the flared cup rim) that would require mold slides, and suggest design changes to avoid them if reasonably possible
- Compensate dimensions for shrinkage based on a recommended resin (please suggest a suitable material — e.g., ABS, PP, or a clear/translucent resin to preserve the "glass" look — and note the shrink rate used)

DELIVERABLES:
- Updated .SLDPRT files for all 3 designs (edited features, not flattened/dumb geometry)
- Updated .STEP exports
- Updated .STL exports (print-ready, watertight/manifold)
- A short DFM summary noting draft angles used, wall thicknesses, recommended material, parting line location, and any undercuts/slides required

REQUIREMENTS:
- Strong SolidWorks skills, specifically plastic part / injection mold design (not just general mechanical CAD)
- Demonstrated DFM experience — please share 1-2 examples of past injection-molded consumer parts you've designed
- Please do NOT change the stem, point, or overall tee height/proportions beyond what's needed for moldability — only the cup diameter, cup fill/interior, engraving text, and mold-related features read less