Sure you can use a drop down, here's an example button:
Code:<form action="https://www.paypal.com/cgi-bin/webscr" method="post">
<input type="hidden" name="cmd" value="_xclick">
<input type="hidden" name="business" value="nate@ndswebdesign.com">
<input type="hidden" name="lc" value="US">
<input type="hidden" name="item_name" value="Currency Tester">
<input type="hidden" name="amount" value="1.00">
<input type="hidden" name="button_subtype" value="services">
<input type="hidden" name="cn" value="Add special instructions to the seller">
<input type="hidden" name="no_shipping" value="2">
<input type="hidden" name="bn" value="PP-BuyNowBF:btn_buynowCC_LG.gif:NonHosted">
<table>
<tr><td>Select a Currency</td></tr><tr><td><select name="currency_code">
<option value="USD">US Dollar</option>
<option value="CAD">Canadian Dollar</option>
<option value="EUR">Euro</option>
</select> </td></tr>
</table>
<input type="image" src="https://www.paypal.com/en_US/i/btn/btn_buynowCC_LG.gif" border="0"
name="submit" alt="PayPal - The safer, easier way to pay online!">
<img alt="" border="0" src="https://www.paypal.com/en_US/i/scr/pixel.gif" width="1" height="1">
</form>
If you need additional assistance feel free to contact me at
nate@ndswebdesign.com