Set of three ceramic mugs with geometric patterns and text

A set of three ceramic mugs appearing to be made of glazed stoneware or porcelain in a light gray or semi-matte finish. Each mug features a distinct black-inked geometric design and cursive motivational text. The top mug displays a diamond-and-dot border with the text 'be calm * be calm *', followed by a stippled dot pattern. The bottom-left mug features a stepped geometric motif with the text 'happy * happy *' and a lower band of vertical hatched lines. The bottom-right mug displays a chevron and triangle pattern with the text 'relax * relax *'. All three mugs share a similar cylindrical silhouette with a rounded base and a simple C-shaped handle. The craftsmanship is consistent with mass-produced contemporary housewares, often found in modern retail settings. While the owner mentions a 'signature', no specific artist signature or maker's mark is clearly legible in the provided image to verify a brand. The items show minimal visible wear, suggesting they are in good condition without significant chips or cracks. The identification as a set is based on the stylistic consistency across all three pieces, though individual origin cannot be confirmed without physical inspection of the undersides.

Based on my visual analysis of the provided image, this set of three ceramic mugs appears to be contemporary mass-market stoneware or porcelain. Each piece features printed geometric motifs and motivational text. While the user-supplied details mention a 'signature', I cannot verify or read any specific maker's mark from the photo. I am treating the attribution to a specific artist as a hypothesis only, as these designs are consistent with modern retail housewares often sold in boxed sets. From what I can see, the mugs appear to be in good condition with no visible chips; however, a physical inspection would be required to rule out hairline fractures or internal staining. The value estimate is based on the assumption that these are standard contemporary decorative kitchenware. Market demand for this type of non-collectible ceramic is generally found in the secondary retail or thrift market rather than high-end auctions. If no notable artist or high-end brand is confirmed upon physical inspection of the undersides, the value remains in the modest range of common household goods. Should these be identified as the work of a specific, sought-after ceramicist via a verified signature or provenance documentation, the value could increase slightly, but the current aesthetic suggests a commercial origin. To confirm the origin and potential brand, one would need to inspect the base for hallmarks and research specific pattern registrations. Without such verification, they are valued purely as functional decorative objects with minimal investment potential.