I'd suggest the cricket keeper too...I'm just too lazy when it comes to a DYI project for gecko stuff lol I just never know if my DYI project is good enough. I have a cricket keeper and it is a pain to clean. The poop doesnt come out easy and they always die and smell. But it's nice because the crickets climb up the tubes and then you just shake the tube into a bag to dust them...so you never have to touch them! But you can put them in some sort of plastic container as TifaBea has suggested. Make sure you gut load them and give them some sort of water dish...I just use the cube things but I've hear people use fruits/veggie peices but you'll have to research that as some veggies are not good to use for gut-loading I hear? I would just start with say 10 small (maybe 1/2" or less?) crickets and gut load them and then feed them to her...I'm re-introducing my girls to crickets so I only by 10 at a time so I don't have to deal with the cricket keeper. But once she starts eating them more (and keeping them down!) you can then research the methods of keeping crickets (most likely in the feeders topic thread).
In terms of feeding her...I fed them in a seperate tank ( a previous one, but you can use a large tupperware container). I throw them in there with her and let her eat them until she shows no more interest. Make sure you don't play with her before she eats...because I find they won't eat after you play with them because they are so curious still lol. Then put her back in the tank and take out the crickets from the previous tank. When I use tupperware, I would just dump the tupper ware into the cricket keeper. Nice and easy! and you don't even have to touch them
In terms of feeding her...I fed them in a seperate tank ( a previous one, but you can use a large tupperware container). I throw them in there with her and let her eat them until she shows no more interest. Make sure you don't play with her before she eats...because I find they won't eat after you play with them because they are so curious still lol. Then put her back in the tank and take out the crickets from the previous tank. When I use tupperware, I would just dump the tupper ware into the cricket keeper. Nice and easy! and you don't even have to touch them