No Slick.........gift is not necessary, money will suffice !!!!
You can get yourself along to Chinatown or a Chinese restaurant maybe and purchase a red packet (Ang Pow).....put whatever money you would like to put in it as a gift. That is all that is required.
Have I attended Chinese weddings ????? My first wife was Chinese, and I attended MANY weddings in Singapore, Malaysia and the USA.
Hope thjis helps you,
Wom