Can I include HTML in a custom field’s value?

I’m trying to write a couple cells of an HTML table into my custom field, so that I can dynamically add options to a PayPal button. Here’s my code on index.php:

<table>
 <?php $options = "get options"; echo get_post_custom_values('options'); ?>
<td><input type="image" src="https://www.paypal.com/en_US/i/btn/btn_cart_SM.gif" border="0" align="middle" 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">
</td>
</table>

The value for “options” is:

<td>
<input type="hidden" name="on0" value="Signed?">Signed?</td><td><select name="os0">
	<option value="yes">yes </option>
	<option value="no">no </option>
</select> </td>
<td><input type="hidden" name="on1" value="Inscription [ optional ]">Inscription [ optional ]</td><td><input type="text" name="os1" maxlength="60"></td>

All this does right now is display the word “array” (https://shop.patbarrett.com). Does anybody know anything else I should be doing?

Thanks.