Incubator experiment help.

so i have a few questions, incubators can be expensive and right now my barred roc rooster is mating my barred roc hens like crazy. and i know the rocs lay big brown eggs so it wont be hard to pic them out of the other eggs. heres the thing i got a lava lamp for xmas and me not knowing left it on for 15hrs so all the goo got cooked and it dont work anymore. but i thought maybe the base and the bulb may come in handy . i was thinking of cutting the middle a tupperware dish and placing it on the lamp base im thinking it may be hot enough to do the job. or if anyones has any other ideas on how to use the lamp base let me know. i want to incubate the eggs for 5 days and see if anything is happening by candling. also if the map is on for 10 hrs would it be ok to shut it off for 2 hrs then turn back on. im gonna need a way to make it humide too but im not sure. i got a bad pic to demonstrate. but hey im using paint not photoshop. lol