Since dolls are heavy and bulky, Sea Freight (LCL or FCL) is the most economical method, potentially saving 60-80% compared to air freight. To further reduce costs, ask the supplier to use vacuum packaging if the material allows, which reduces the volumetric weight. For 'cheap' doll lines, consider SKD (Semi-Knocked Down) shipping, where the head and limbs are packed separately to maximize container space. Always negotiate FOB (Free On Board) terms to maintain control over your logistics provider and costs.