The Gummy Bear Lamp is one of Spencer's art that is made out of multicolored gummy bears. It appeared in iGot a Hot Room episode (which is Carly's birthday).
It is the gift of Spencer for her lovely sister, Carly (who's been wanting to have a lamp in her room for a long time). Spencer told Gibby to put the lamp and turn on the light in Carly's room, due to overheat, the lamp bulb exploded and burned the entire room (which makes Carly very depressed for what happened).
After a couple days, Spencer rebuilt Carly's room (using the $82,000 he got from the diamond-encrusted wrist watch that burnt in the fire) and replaced the gummy bear lamp into a gummy bear chandelier.
Gummy Bear Chandelier
The Gummy Bear Chandelier is an art made also by Spencer that is made out of multicolored gummy bears too; to replace the burnt lamp (that caused the fire accident in Carly's room) he made for Carly. It appeared first in iGot a Hot Room episode and it reappeared again in several episodes in Season 4 of iCarly.