Great! Here are some content ideas for visiting card designs that you can promote on your website:

1. Minimalist design: Use a simple and minimalist design that features your company logo and contact information. This makes it easy for people to read and remember your contact details.

2. Custom shapes: Design your visiting card in a unique shape, such as a square or circle, to stand out from traditional rectangular visiting cards.

3. Creative typography: Use creative typography to make your company name or contact information stand out. This can help to create a memorable visiting card design.

4. Photo visiting cards: Use a photo of yourself or your team on the visiting card to add a personal touch and make it easy for clients to put a face to a name.

5. Bold colors: Use bold and bright colors to make your visiting card stand out from others. This can help to create a memorable and eye-catching design.

6. Embossed or raised text: Add texture to your visiting card design by using embossed or raised text. This can help to create a more tactile and memorable experience for clients.

7. Die-cut visiting cards: Create a unique and memorable visiting card by using die-cut shapes or patterns to create a unique design.

8. QR codes: Include a QR code on your visiting card that links to your website or social media profiles. This can help to make it easy for clients to connect with you online.

9. Custom illustrations: Use custom illustrations or artwork to create a unique and memorable visiting card design that reflects your brand.

10. Premium finishes: Use premium finishes, such as foil stamping or letterpress, to create a high-end and professional visiting card design that leaves a lasting impression.