Last night I happened to run across a site that has candles specifically designed for the line, and a little more searching turned up several sources for the round and the flame-shaped candles, including FinnStyle, Gift Chalet and Scandinavian South. Now that we know they're being manufactured again, a more thorough search will almost certainly turn up more sources.
The ball candles cost $2.75 each, the large Danish Drops range from $5.50 to 5.75, and the small Danish Drops are around $4.00, give or take a nickel.
|Festivo candleholders by Timo Sarpaneva for Iittala|
Footed ball candles
|Large Danish Drop candles|
|Small Danish Drop candles|
|Large Danish Drop candle|
I apologize for the poor quality of the color chart images. These appear to have been scanned from a catalog and placed on the company's website.