time to look around the house... depending on how big he/she is
its easy to make a hobo cage out of a rubbermaid... if u have a human heating pad use that under it.. it will not melt the plastic.. ide line the the rubbermaid cage with paper towel since this will allow max heat flow from the uth to the snake..
but i am very new and owning one myself but it cant get much worse then not having any heat or a cage... so i think my idea would work fine
before u put the snake in the cage if u have a digi thermometer with a wire probe sitck it under the snakes hide in the rubbermaid cage and see what the temp is.. if its to hot turn the heating pad down.. to cold turn the pad up... should do just fine since the pads dont get that hot.. well mine doesnt anyways
you could probs also make a cardboard box cage ... << dunno how that would work lol