Geometric nick marks

Diamonds, squares and circles used as nick spacers. Simple ◆ or ● survive more fonts than the outlined ones.

• ◆
• ◇
• ■
• □
• ●
• ○
• ▲
• △
• ▼
• ▽
• ✦
• ✧
• ◈
• ◉
• ◎