prinux provides self-inking, highly-practical stamp product lines by the name brand manufacturer, Trodat:
Printy is the name of the popular stamps featuring a plastic mechanism. They are particularly well-suited for private individuals, or occasional use.
Professional Line features extremely stable, ergonomic, and durable stamps with a steel core.
Date stamps can print a combination of text and date. The date is in a fixed position, but the space above or below can be customized to your needs.
Stamps are available in red, blue, green, and purple (= color of the built-in ink pad). Various texts or simple graphics and logos can serve as templates (no photos).