Some key points to consider while designing trademarks are: 1. Distinctiveness and Memorability: The trademark should be unique and easily distinguishable from others, making it memorable and recognizable to consumers. 2. Registrability: It must be capable of being legally registered and protected, meaning it shouldn't be generic, descriptive, or too similar to existing trademarks. 3. Relevance and Versatility: The design should ideally reflect the brand's identity or product/service, and be adaptable across various media and sizes without losing its impact.