Posting in the Magento forums has been disabled pending the implementation of a new and improved forum solution which should better serve the community.
For new questions please post at magento.stackexchange.com, the community-run support site for the Magento community. We will be providing updates on the new forum solution soon. For questions or concerns please email firstname.lastname@example.org.
If you can ask the option in the product page instead of at checkout, then custom options. If it must be at checkout, use custom options also, but you’ll need custom code to put the options there instead of at the product page.