This one kind of is:
http://www.silicagelpackets.com/dry-packs-canister/The thing about indicating ones is that many of them cannot be reactivated on account of the fact that the packet in which they are enclosed must be a clear plastic, which consiquently, will not hold up to oven temperatures.
Another option for the creatively inclined might be to buy some loose gel (
here) and make your own little thing. You might even be able to sell a few on here and make back a fair amount of the costs.
EDIT to add: Just did some math... that 4.5lb bag of loose gel is equal to just over 1,800 grams-- enough to make fourty 40gram ones (which is the size you found). So, not counting the cost of the container that would hold the gel, it looks like for roughly twice the cost of the toxic indicating gel you linked ($54.99 for 4.5lbs of loose gel vs. $22.50 for four 40gram cases), you can buy 10 times as much safe incidating gel and make your own. (or if you're feeling really rich and saucy, buy the 55lbs bag and get 24,947 grams... enough for 623 40gram ones... not counting the cost of the container, that would make each 40gram desiccant device cost about 50cents...)
Also found this:
70 cubic inches - 1/2 gram
100 cubic inches - 3/4 gram
130 cubic inches - 1 gram
389 cubic inches - 3 grams
648 cubic inches - 5 grams
1296 cubic inches - 10 grams
2 cubic feet - 28 grams
4 cubic feet - 56 grams
8 cubic feet - 112 grams
15 cubic feet - 200 grams
33 cubic feet - 450 grams
66 cubic feet - 900 grams
2nd EDIT: Just now finding out that
the blue > pink indicators are apparently dangerous enough that new European regulations are banning / restricting the use and sale of them.... I really think we all would do well to avoid the blue > pink indicators!!