Mainstays Glazed Stoneware Mug

Walmart

Plain white color matches exactly, Cylindrical body shape is identical, Simple C-shaped handle design matches, Smooth, untextured surface, Glazed stoneware (ceramic) material matches, Standard coffee mug proportions are consistent, No visible branding on the mug itself, fitting 'generic' description

Crate & Barrel Wren Mug

Crate & Barrel

Plain white color, Cylindrical body shape, Simple C-shaped handle, Smooth, untextured surface, Ceramic/porcelain material, Standard coffee mug proportions

Crate & Barrel Mercer Jumbo Mug

Crate & Barrel

White color, Porcelain/ceramic material, Coffee mug category