I'm sure everybody in this forum has heard something about the phasing out of incandescent bulbs. The following Wikipedia article contains a timeline for various countries around the world:
Lava Lamps require heat to operate, and the ideal all-in-one light+heat source is an incandescent bulb. Small bulbs will likely be replaced with LEDs, whereas most standard sockets use CFLs. There is a Lowe's right down the street from my house that I always use to get my light bulbs, but lately, it has been getting harder to find the right bulbs for my lamps. I have a Purple/Yellow Grande Lava Lamp that I ordered online some time ago, but when it arrived, it was so cloudy that I could not see the bubbles except when they pressed against the wall of the glass. Frustrated that it did not clear up, I put the monstrous ugly globe away in my closet for about six or seven months and basically forgot about it. When I pulled it back out, there was still a slight haze, but it is clear enough so that I can see strait through the globe to the other side while it is turned off, and so at least I will be able to appreciate the movement. The globe lit up, but two hours later, the bulb went out, and the lava had never flowed.
I walk to Lowe's, and they no longer had the miniature 100w flood lamps that my Grande Lava Lamp required, nor do they have in stock the large 65w flood lights required by the three recessed ceiling fixtures in our living room. They are on a dimmer switch, which I sometimes use for ambient light while watching movies in the dark. These lamps also last an incredibly long time since they are cycled on/off with a dial instead of a switch. Well, we still have only two out of the three bulbs in our living room, and nothing in the base of my Grande. Someday, we may be able to permanently replace the three ceiling fixtures with LED lamps (which can be safely dimmed in one of two ways: by digital duty-cycling or by analog dimmer circuits), although the spectra of white LEDs have a "moonlight" effect, with a narrow blue band and a wide yellow band that tends to mute the vibrancy of reds and greens into that of browns and olives.
So unless somebody creates a hybrid lamp base with separate light source and heating element, the future of Lava Lamps as we know it may be doomed...
Attached is a proposed solution to the lava lighting issue.