Michieyun: If the cards are collected from the hotel printer direct, they should be able to know the size of your card. Just get ready your parents names will do. hehe...
For GDL items, it will be better to discuss with your parents on what they want. For certain items, pple dun follow dialet customs liao. Eg: Si Dian Jin is teochew custom, but now other dialects are following it too. hehe... Cantonese go for roast pig, but for hokkien, we will use pig trotter cans.
I'm a hokkien, these are the GDL items which I take from HTB for your reference.
Pin Jin (è˜é‡‘), 4 touch of gold (四点金), Nappy angpao (洗尿布的红包), Grandpa angpao (祖父礼金), 2 pairs of Dragon and phoenix candles replaced by 2 Ang Pao(两对龙风烛用红包代替), 6 types auspicious seeds and grains (Red dates/ Dried longans/ lotus seeds / red bean/ green bean/ lily bulbs) (å…ç§å‰ç¥¥è°·ï¼šçº¢æž£ï¼Œé¾™çœ¼å¹²ï¼Œè޲å, 红豆, 绿豆,百åˆï¼‰, A basket of 12 oranges (12 粒橙放在è“å里), 2 bottles of brandy (两瓶烈酒), 28 boxes of cakes (二å八盒喜饼), 24 pig trotter cans (二åå››ç½çŒªè„šç½)
Btw.. what dialect are you?