How to create a hand-drawn arrow shape in PowerPoint

   or   

To create a shape like the one above, do the following:

   1.   On the Insert tab, in the Illustrations group, click the Shapes button:

   2.   In the Shapes drop-down list, in the Basic Shapes group, select Arc:

   3.   Place it and change the size as you prefer:

   4.   Right-click on the new shape and choose Format Shape... from the popup menu.

   5.   On the Format Shape pane, on the Shape Options tab, in the Fill & Line group, in the Line section, choose Solid line and then:

• Select your favorite Color,
• Select Width as you prefer:
  
• Select the End Arrow type. For example, Stealth arrow:
  
• Select the End Arrow size as you prefer. For example, the biggest one - Arrow R size 9:
  

Add any other adjustments you like.

Note: You can add four arc lines to create a hand-drawn arrow. For example:

To see more smoothed lines, on the Format Shape pane, on the Shape Options tab, in the Fill & Line group, in the Line section, choose Round in the Cap type drop-down list: