Here is a clear Digambar-style Ashtamangal image you can use for reference (all 8 symbols shown together): You can view it here:

The 8 Ashtamangal (as used in Digambar tradition also) are:

1. Swastika
2. Shrivatsa
3. Nandavarta
4. Vardhamanaka
5. Bhadrasana (Sinhasana – throne)
6. Kalasha (pot)
7. Mina‑yugala (pair of fish)
8. Darpana (mirror)

You can open the above link and directly save or zoom the Ashtamangal image in proper Jain style.