Guess it depends what you want to put in it - savoury or sweet
Ive tried almond flour based ones with things like quiches / DD pies - nice but pretty dense
Ive not tried this but theres a lovely looking lemon custard tart in celia brooks low carb gluten free cookbook thats been on my " to try " list for a while. The pastry part of the tart recpe is 165g dessicated coconut, 2 egg whites & 3 tbsp erythfitol or other sweetener
This is also on my totry list -As you can tell, im better at looking than doing when it comes to other peoples recipes
http://www.sugarfreemom.com/recipes/low-carb-coconut-flour-pie-crust/