Disclosed is a toothbrush comprising an optical machine readable representation of data such as a barcode. Also disclosed is an oral care implement comprising a surface and a plurality of protrusions extending at least 1 millimeter from the surface the protrusions at least partially defining an optical machine readable representation of data such as a barcode. Also disclosed is a system comprising: an oral care implement comprising an optical machine readable representation of data such as a barcode and a device comprising a processor and memory storing computer readable instructions for causing the processor to process an image of the optical machine readable representation of data to extract the data from the image.