I read some Yoga books, and saw Swami Sivananda saying to not kill animals, but himself can be found in a photo making asana over a tiger's skin carpet, even pictures of Lord Shiva show him over a tiger carpet. So, if a Hindu can't kill animals, how do they get those tigers carpets?
From info found here,the following quote is taken from Sukeshi's questions(to the Sages) found in the Vamana Puranam:
The sages say- “Dharma consists of ten properties such as non-violence, truth, charity, not stealing the property of others, forgiveness, self-restraint, cleanliness etc. Hence it is known as Dashaang Dharma.
Hence anyone following the path of Dharma follows Ahimsa first & foremost.And a Yogi(Saint) will have more reasons to follow it.
Hence,it is evident that the Yogis get tiger skins only from those tigers that died of natural causes.
how do they get tiger carpets?
From what I remember, the way for sadhaks to get tiger skin for their Sadhana is mentioned in Guru charitra(based on the life of Narasimha Saraswati). One of the main conditions mentioned is that one should not kill a tiger to get the tiger skin. In addition to this condition, there are many other conditions like the direction in which a Sadhak has to proceed in search of the tiger skin etc..