Axis of plant leaves, inside any tubing/bamboo...inc any horizontal pieces if there is the slightest gap!, buried under substrate...but on the other hand, she might have laid and eaten them, particularly if they were her first clutch. You can't always get them to co-operate but its worth giving them sites to use as it helps in collection. As they're non-gluers and you've got a naturalistic viv, bamboo is probably best. You want an internal diameter of a little more than the gecko's body. 4 - 6" lengths wedged into the plants horizontally work quite well. I use open tubes (ie no internal partitions included) and block one end with a bit of sponge. Alternatively (or as well) use longer lengths leaning up semi vertically in the corners of the tank or against plants..put the sponge about 4" from the top. The reason for the sponge, rather than using a tube closed at one end, is that if you need to examine your gecko or catch it etc, you can guarantee it will be at the bottom of a semi closed tube and will stay there sulking. If there's only sponge, you can pull it out and then coax the gecko out of the tube from either end (preferable straight into a clear box). It also prevents the tube from accidentally accumulating water inside when misting...and you can also see if there is an accumulation of uneaten crickets building up.